Guest User

Untitled

a guest
May 27th, 2018
92
0
Never
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
text 0.20 KB | None | 0 0
  1. # Find out if a number is prime
  2. #
  3. # Usage: 1.prime?
  4. #
  5. class Integer
  6. def prime?
  7. return false if self == 1
  8. (2..(self-1)).each do |number|
  9. return false if self % number == 0
  10. end
  11. true
  12. end
  13. end
Add Comment
Please, Sign In to add comment