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  1.  
  2. require 'prime'
  3.  
  4. num = 1000
  5.  
  6. puts num.prime_division.max[0]
  7.  
Success #stdin #stdout 0.06s 9896KB
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https://ideone.com/L9oC8b
language:
Ruby (ruby 2.5.5)
created:
8 years ago
visibility:
public

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