241 is the natural number between 240

240 (number)

240 is the natural number following 239 and preceding 241.-In mathematics:With 20 divisors total , more than any previous number, 240 is a highly composite number, and it is also a refactorable number or tau number, since it has 20 divisors and 20 divides 240...

 and 242

242 (number)

242 is the natural number following 241 and preceding 243.-In mathematics:242 is the smallest integer to start a run of four consecutive integers with the same number of divisors.242 is a nontotient since there is no integer with 242 coprimes below it....

. It is also a 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...

.

Ordinal Ordinal number In set theory, an ordinal number, or just ordinal, is the order type of a well-ordered set. They are usually identified with hereditarily transitive sets. Ordinals are an extension of the natural numbers different from integers and from cardinals...	Two hundred [and] forty-one
Cardinal Cardinal number In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality of sets. The cardinality of a finite set is a natural number – the number of elements in the set. The transfinite cardinal numbers describe the sizes of infinite...	241st
Factorization Factorization In mathematics, factorization or factoring is the decomposition of an object into a product of other objects, or factors, which when multiplied together give the original...	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...
Roman numeral	CCXLI
Binary Binary numeral system The binary numeral system, or base-2 number system, represents numeric values using two symbols, 0 and 1. More specifically, the usual base-2 system is a positional notation with a radix of 2...	11110001
Hexadecimal Hexadecimal In mathematics and computer science, hexadecimal is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F to represent values ten to fifteen...	F1

In mathematics

241 is the larger of the twin prime

Twin prime

A twin prime is a prime number that differs from another prime number by two. Except for the pair , this is the smallest possible difference between two primes. Some examples of twin prime pairs are , , , , and...

s (239, 241).
Prime twins are always of the form (6n - 1, 6n + 1), with n = 1, 2, 3, ...
[Thus the set of smallest twin primes is (5, 7).]

241 is a regular prime and a lucky prime.

Since 241 = 15 × 2⁴ + 1, it is a Proth prime.

241 is a repdigit

Repdigit

In recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....

 in base 15 (111).

In popular culture

• Reel Big Fish
  Reel Big Fish
  Reel Big Fish is an American ska punk band from Huntington Beach, California, best known for the 1997 hit "Sell Out". The band gained mainstream recognition in the mid-to-late 1990s, during the third wave of ska with the release of the gold certified album Turn the Radio Off. Soon after, the band...
  
   wrote a song entitled "241," where the number is repeated as the only lyric.
• A short form of the phrase "Two for One" describing a discount.

In professional sports

The seating Section 241 of Nationals Park, the home of the Washington Nationals

Washington Nationals

The Washington Nationals are a professional baseball team based in Washington, D.C. The Nationals are a member of the Eastern Division of the National League of Major League Baseball . The team moved into the newly built Nationals Park in 2008, after playing their first three seasons in RFK Stadium...

 Major League Baseball team, is known as the National League

National League

The National League of Professional Baseball Clubs, known simply as the National League , is the older of two leagues constituting Major League Baseball, and the world's oldest extant professional team sports league. Founded on February 2, 1876, to replace the National Association of Professional...

's rowdiest seating areas, if not the rowdiest in all of baseball.

Fans seated in Section 241, generally single young professionals between the ages of 18 and 35, typically chant "two-four-one! two-four-one!" and often attempt to start the wave. The former has been thought to distract and perplex outfielders of visiting teams.

The section's unique persona is believed to be rooted in the number 241. Regulars of the section are believed to have chosen it because 241, pronounced "two-four-one" sounds similar to the name of the two-for-one special sales of beer

Beer

Beer is the world's most widely consumed andprobably oldest alcoholic beverage; it is the third most popular drink overall, after water and tea. It is produced by the brewing and fermentation of sugars, mainly derived from malted cereal grains, most commonly malted barley and malted wheat...

at the ballpark.