77 (number)
Encyclopedia
77 is the natural number
following 76
and preceding 78
. Seventy-seven is the smallest positive integer requiring five syllables in English
.
and the first of the (7.q) family. Since both 7 and 11 are Gaussian prime
s, this means that 77 is a Blum integer
.
It is the sum of three squares, 42 + 52 + 62, as well as the sum of the first eight prime number
s.
77 has a aliquot sum
of 19 and it is the second number to do so the first being 65. 77 is the 2nd member of the 19-aliquot tree.
77 and 78 form a Ruth–Aaron pair under the second definition in which repeated prime factors are counted as often as they occur.
It is possible for a sudoku
puzzle to have as many as 77 givens, yet lack a unique solution.
It and its sibling 49 are the only 2-digit numbers whose home prime
s have not been calculated.
It is the number of digits of the 12th perfect number
. It also is the number of integer partitions
of the number 12.
when added together: J = 10, E = 5, S = 19, U = 21, S = 19. Thus, JESUS CHRIST can be represented as 151 (number)
in numerology based on the English alphabet.
Conspiracy theorists often imagine that the statistically inevitable occasional appearance of the number 77 in large events such as terrorist attacks hints at 'high-level involvement of powerful white supremist, Zionist and/or Christian-based secret societies', e.g., Flight 77 crashing into the Pentagon on September 11, or the infamous 7 July 2005 London bombings
, also known as 7/7. Theorists purport that the appearance of the number 77 in other aspects of the culture is indicative of association with such groups.
in Sweden
at the border with Norway
, "77" was used as a shibboleth
(password
), because the tricky pronunciation in Swedish made it easy to instantly discern whether the speaker was native Swedish
, Norwegian
, or German
.
ic tradition, "77" figures prominently. Muhammad
is reported to have explained, "Faith has sixty-odd, or seventy-odd branches, the highest and best of which is to declare that there is no god but God, and the lowest of which is to remove something harmful from a road. Shyness, too, is a branch of faith." While some scholars refrain from clarifying "sixty-odd or seventy-odd," various numbers have been suggested, 77 being the most common. Some have gone so far as to delineate these branches.
Natural number
In mathematics, the natural numbers are the ordinary whole numbers used for counting and ordering . These purposes are related to the linguistic notions of cardinal and ordinal numbers, respectively...
following 76
76 (number)
76 is the natural number following 75 and preceding 77.-In mathematics:Seventy-six is a Lucas number, an automorphic number, a nontotient, a 14-gonal number, and a centered pentagonal number....
and preceding 78
78 (number)
78 is the natural number following 77 and followed by 79.-In mathematics:78 is a triangular number, and its factorization makes it a sphenic number...
. Seventy-seven is the smallest positive integer requiring five syllables in English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...
.
In mathematics
Seventy-seven is the 22nd discrete biprimeSemiprime
In mathematics, a semiprime is a natural number that is the product of two prime numbers. The first few semiprimes are 4, 6, 9, 10, 14, 15, 21, 22, 25, 26, ... ....
and the first of the (7.q) family. Since both 7 and 11 are Gaussian prime
Gaussian integer
In number theory, a Gaussian integer is a complex number whose real and imaginary part are both integers. The Gaussian integers, with ordinary addition and multiplication of complex numbers, form an integral domain, usually written as Z[i]. The Gaussian integers are a special case of the quadratic...
s, this means that 77 is a Blum integer
Blum integer
In mathematics, a natural number n is a Blum integer if n = p×q is a semiprime for which p and q are distinct prime numbers congruent to 3 mod 4. That is, p and q must be of the form 4t+3, for some integer t. Primes of this form are referred to as Blum primes. This means that the factors of a Blum...
.
It is the sum of three squares, 42 + 52 + 62, as well as the sum of the first eight prime number
Prime number
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number. For example 5 is prime, as only 1 and 5 divide it, whereas 6 is composite, since it has the divisors 2...
s.
77 has a aliquot sum
Divisor function
In mathematics, and specifically in number theory, a divisor function is an arithmetical function related to the divisors of an integer. When referred to as the divisor function, it counts the number of divisors of an integer. It appears in a number of remarkable identities, including relationships...
of 19 and it is the second number to do so the first being 65. 77 is the 2nd member of the 19-aliquot tree.
77 and 78 form a Ruth–Aaron pair under the second definition in which repeated prime factors are counted as often as they occur.
It is possible for a sudoku
Sudoku
is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9...
puzzle to have as many as 77 givens, yet lack a unique solution.
It and its sibling 49 are the only 2-digit numbers whose home prime
Home prime
In number theory, the home prime HP of an integer n greater than 1 is the prime obtained by repeatedly factoring the increasing concatenation of prime factors including repetitions. The mth intermediate stage in the process of determining HP is designated HPn...
s have not been calculated.
It is the number of digits of the 12th perfect number
Perfect number
In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself . Equivalently, a perfect number is a number that is half the sum of all of its positive divisors i.e...
. It also is the number of integer partitions
Partition (number theory)
In number theory and combinatorics, a partition of a positive integer n, also called an integer partition, is a way of writing n as a sum of positive integers. Two sums that differ only in the order of their summands are considered to be the same partition; if order matters then the sum becomes a...
of the number 12.
In numerology
In certain numerological systems based on the English alphabet, the number 77 is associated with Jesus Christ. CHRIST is C = 3, H = 8, R = 18, I = 9, S = 19, T = 20, which added together equal 77. The letters of JESUS equal 74 (number)74 (number)
74 is the natural number following 73 and preceding 75.A seventy-four was a third-rate warship with 74 guns.-In mathematics:Seventy-four is the twenty-first distinct semiprime and the eleventh of the form 2×q...
when added together: J = 10, E = 5, S = 19, U = 21, S = 19. Thus, JESUS CHRIST can be represented as 151 (number)
151 (number)
151 is a natural number. It follows 150 and precedes 152.-In mathematics:151 is the 36th prime number, the previous is 149, with which it comprises a twin prime. 151 is also a palindromic prime. 151 is a centered decagonal number...
in numerology based on the English alphabet.
Conspiracy theorists often imagine that the statistically inevitable occasional appearance of the number 77 in large events such as terrorist attacks hints at 'high-level involvement of powerful white supremist, Zionist and/or Christian-based secret societies', e.g., Flight 77 crashing into the Pentagon on September 11, or the infamous 7 July 2005 London bombings
7 July 2005 London bombings
The 7 July 2005 London bombings were a series of co-ordinated suicide attacks in the United Kingdom, targeting civilians using London's public transport system during the morning rush hour....
, also known as 7/7. Theorists purport that the appearance of the number 77 in other aspects of the culture is indicative of association with such groups.
In history
During World War IIWorld War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
in Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
at the border with Norway
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
, "77" was used as a shibboleth
Shibboleth
A shibboleth is a custom, principle, or belief distinguishing a particular class or group of people, especially a long-standing one regarded as outmoded or no longer important...
(password
Password
A password is a secret word or string of characters that is used for authentication, to prove identity or gain access to a resource . The password should be kept secret from those not allowed access....
), because the tricky pronunciation in Swedish made it easy to instantly discern whether the speaker was native Swedish
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
, Norwegian
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
, or German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
.
In religion
In the IslamIslam
Islam . The most common are and . : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...
ic tradition, "77" figures prominently. Muhammad
Muhammad
Muhammad |ligature]] at U+FDF4 ;Arabic pronunciation varies regionally; the first vowel ranges from ~~; the second and the last vowel: ~~~. There are dialects which have no stress. In Egypt, it is pronounced not in religious contexts...
is reported to have explained, "Faith has sixty-odd, or seventy-odd branches, the highest and best of which is to declare that there is no god but God, and the lowest of which is to remove something harmful from a road. Shyness, too, is a branch of faith." While some scholars refrain from clarifying "sixty-odd or seventy-odd," various numbers have been suggested, 77 being the most common. Some have gone so far as to delineate these branches.
In sports
- Portland Trail BlazersPortland Trail BlazersThe Portland Trail Blazers, commonly known as the Blazers, are an American professional basketball team based in Portland, Oregon. They play in the Northwest Division of the Western Conference in the National Basketball Association . The Trail Blazers originally played their home games in the...
coach Jack RamsayJack RamsayJack T. Ramsay is an American former basketball coach, commonly known as "Dr. Jack" . He is best known for coaching the Portland Trail Blazers to the 1977 NBA Title, and for his broadcasting work with the Indiana Pacers, the Miami Heat, and for ESPN TV and ESPN Radio...
led his team to their only NBANational Basketball AssociationThe National Basketball Association is the pre-eminent men's professional basketball league in North America. It consists of thirty franchised member clubs, of which twenty-nine are located in the United States and one in Canada...
title in his first season. #77 was retired in honor of the 1977 NBA title. - The number posthumously retired by the Minnesota VikingsMinnesota VikingsThe Minnesota Vikings are a professional American football team based in Minneapolis, Minnesota. The Vikings joined the National Football League as an expansion team in 1960...
of the NFL for offensive lineman Korey StringerKorey StringerKorey Damont Stringer was an American football player who died from complications brought on by heat stroke, during training camp in Mankato, Minnesota while in training camp with the Minnesota Vikings of the National Football League.-College career:Stringer was born in Warren, Ohio and attended...
. - The number worn by Ray BourqueRay BourqueRaymond Jean "Ray" Bourque is a former Canadian professional ice hockey player. He currently holds records for most goals, assists and points by a defenceman in the National Hockey League . Bourque has become near-synonymous with the Boston Bruins franchise, for which he played 21 seasons and...
in the NHLNational Hockey LeagueThe National Hockey League is an unincorporated not-for-profit association which operates a major professional ice hockey league of 30 franchised member clubs, of which 7 are currently located in Canada and 23 in the United States...
from 1979 to 2001. This number has been retired by the Boston BruinsBoston BruinsThe Boston Bruins are a professional ice hockey team based in Boston, Massachusetts, USA. They are members of the Northeast Division of the Eastern Conference of the National Hockey League . The team has been in existence since 1924, and is the league's third-oldest team and its oldest in the...
, with whom he played for 20 years, and the Colorado AvalancheColorado AvalancheThe Colorado Avalanche are a professional ice hockey team based in Denver, Colorado, United States. They are members of the Northwest Division of the Western Conference of the National Hockey League . The Avalanche have won the Stanley Cup twice, in 1995–96 and 2000–01. The franchise...
, with whom he won the Stanley CupStanley CupThe Stanley Cup is an ice hockey club trophy, awarded annually to the National Hockey League playoffs champion after the conclusion of the Stanley Cup Finals. It has been referred to as The Cup, Lord Stanley's Cup, The Holy Grail, or facetiously as Lord Stanley's Mug...
in his last NHL game. - The number worn by football legend Red GrangeRed GrangeHarold Edward "Red" Grange, nicknamed "The Galloping Ghost", was a college and professional American football halfback for the University of Illinois, the Chicago Bears, and for the short-lived New York Yankees. His signing with the Bears helped legitimize the National Football League...
. Retired by both the University of IllinoisUniversity of Illinois at Urbana-ChampaignThe University of Illinois at Urbana–Champaign is a large public research-intensive university in the state of Illinois, United States. It is the flagship campus of the University of Illinois system...
and the Chicago BearsChicago BearsThe Chicago Bears are a professional American football team based in Chicago, Illinois. They are members of the North Division of the National Football Conference in the National Football League...
. - The number worn by NFL Hall of Famer Jim ParkerJim Parker (American football)James Thomas "Jim" Parker was a college and professional American football player in the 1950s and '60s. He is a member of the College and Professional Football Halls of Fame.-College career:...
. Retired by the Indianapolis ColtsIndianapolis ColtsThe Indianapolis Colts are a professional American football team based in Indianapolis. They are currently members of the South Division of the American Football Conference in the National Football League .... - The number worn by NFL offensive tackle Stan MauldinStan MauldinStanley Hubert Mauldin was a professional American football offensive tackle in the National Football League for the Chicago Cardinals. He died of a heart attack after a game against the Philadelphia Eagles in 1948. His number 77 is retired by the Cardinals.-External links:...
. Retired by the Arizona CardinalsArizona CardinalsThe Arizona Cardinals are a professional American football team based in Glendale, Arizona, a suburb of Phoenix. They are currently members of the Western Division of the National Football Conference in the National Football League...
. - The number worn by NCAA football legend Dennis Byrd. Retired by NC StateNC State Wolfpack footballThe NC State Wolfpack football team represents North Carolina State University in NCAA Football Bowl Subdivision competition. The Wolfpack currently compete in the Atlantic Coast Conference....
in 2001. - The number worn by NCAA football legend John Schmitt. Retired by Hofstra UniversityHofstra UniversityHofstra University is a private, nonsectarian institution of higher learning located in the Village of Hempstead, New York, United States, about east of New York City: less than an hour away by train or car...
. - The number worn by Alex Melvin of the Pickering Red Sox (PBA). Retired in 2009.
- The number worn by NCAA basketball legend Bill SpiveyBill SpiveyWilliam "Bill" Spivey was an American basketball player. A center, he played college basketball for the National Collegiate Athletic Association's Kentucky Wildcats from 1949 to 1951. After his high school career, Spivey was recruited to the University of Kentucky...
. Retired by the University of Kentucky.
In other fields
Seventy-seven is also:- 10-77 – the fire departments' 10 codeTen-codeTen-codes, also known as ten signals, are code words used to represent common phrases in voice communication, particularly by law enforcement and in Citizens' Band radio transmissions....
for high-rise multiple-dwelling fire - The Group of 77Group of 77The Group of 77 at the United Nations is a loose coalition of developing nations, designed to promote its members' collective economic interests and create an enhanced joint negotiating capacity in the United Nations. There were 77 founding members of the organization, but the organization has...
is a group of developing nations at the United NationsUnited NationsThe United Nations is an international organization whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human rights, and achievement of world peace...
. - 77 is also the name of the albumTalking Heads: 77Talking Heads: 77 is the debut album by Talking Heads. It peaked at #97 in the Billboard Pop Albums chart and the single "Psycho Killer" made it to #92. In 2003, the album was ranked #290 on Rolling Stone magazine's The 500 Greatest Albums of All Time list...
by the Talking Heads. - The 77's, an American Rock band.