prime numbers

     

In mathematics, a prime number (or a prime) is a natural number greater than 1 which has exactly two istinct natural number divisors: 1 and itself. An infinitude of prime numbers exists, as demonstrated by Euclid around 300 BC. The first thirty-four prime numbers are:

Trivia about prime numbers

  • A number with factors of only 1 & itself; a 1742 theory says all even numbers over 2 are the sum of 2 of them
  • Project Gutenberg's list of the 1st 100,000 of these runs from 1 to 1,318,699 (though some say 1 may not be one)
  • It's been thought but not proved that there's an infinite supply of twin these, parts of them that differ by 2