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57 (fifty-seven) is the natural number following 56 and preceding 58. It is a composite number. In mathematics. 57 is semiprime [1] a Blum integer, [2] and a Leyland ...
Ω(n), the prime omega function, is the number of prime factors of n counted with multiplicity (so it is the sum of all prime factor multiplicities). A prime number has Ω( n ) = 1. The first: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 (sequence A000040 in the OEIS ).
2.57 Self primes in base 10. 2.58 Sexy ... write the prime factorization of n in base 10 and concatenate the factors; iterate until a prime ... All prime numbers from ...
Mersenne primes and perfect numbers are two deeply interlinked types of natural numbers in number theory. Mersenne primes, named after the friar Marin Mersenne, are prime numbers that can be expressed as 2 p − 1 for some positive integer p. For example, 3 is a Mersenne prime as it is a prime number and is expressible as 2 2 − 1.
A composite number with two prime factors is a semiprime or 2-almost prime (the factors need not be distinct, hence squares of primes are included). A composite number with three distinct prime factors is a sphenic number. In some applications, it is necessary to differentiate between composite numbers with an odd number of distinct prime ...
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A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
David Schwimmer made a lot of people mad when he hosted Saturday Night Live.. On Monday, Jan. 13, the actor, 58, revealed on The Late Show With Stephen Colbert that he made a "big mistake" when he ...