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josephsiefers/simple_prime.rb

Last active September 24, 2015 01:21
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Simple Prime
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simple_prime.rb
def prime? n
for d in 2..(n - 1)
if (n % d) == 0
return false
end
end
#implicit return of the range from the for loop unless you return a value yourself, as seen below:
return true
end
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