Sha256: 12610d429c1b9da99b754b1d6eff7dc874fdbb6c601d99a31854a1ff3ee18a01
Contents?: true
Size: 481 Bytes
Versions: 395
Compression:
Stored size: 481 Bytes
Contents
module BookKeeping
VERSION = 1
end
class Prime
def self.nth(n)
if n < 1
message = 'There is no such thing. Be reasonable.'
fail ArgumentError.new(message)
end
primes = 0
i = 1
while primes < n
i += 1
primes += 1 if self.prime?(i)
end
i
end
def self.prime?(n)
return false if n == 1
return true if n == 2
(2..Math.sqrt(n).ceil).each do |i|
return false if n % i == 0
end
return true
end
end
Version data entries
395 entries across 395 versions & 1 rubygems