1 -- from Wolfram MathWorld 1 club me

Number 1 - Curious Math Facts and Interesting Properties 1 club me 1 club me

• In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. 1 club me
• metanumbers.com 1 (Number) The prime factorization of 1 is 1. Since it has a total of 0 prime factors, 1 is a composite number. Divisors of 1 1 1 divisors 1 club me

1 club me The prime factorization of 1 is 1. Since it has a total of 0 prime factors, 1 is a composite number. Divisors of 1 1 1 divisors 1 club me