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  1. #!/usr/local/bin/ruby -w
  2.  
  3. def prime_number?(integer)
  4.   2.upto(integer - 1) do |n|
  5.     return false if (integer % n) == 0
  6.   end
  7.  
  8.   true
  9. end
  10.  
  11. primes = []
  12. 10.upto 50 do |n|
  13.   if prime_number? n
  14.     primes << n
  15.   end
  16. end
  17.  
  18. p primes
Success #stdin #stdout 0s 4760KB
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Standard input is empty
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[11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47]
https://ideone.com/9Ih90
language:
Ruby (ruby 2.5.5)
created:
14 years ago
visibility:
secret

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