Contents

# coding: utf-8
class Integer
  def sphenic?
    (prime_factors.size == 3) &&
    (prime_factors.uniq.size == 3) && 
    (prime_factors.reduce(:*) == self)
  end
end

Version data entries

16 entries across 16 versions & 1 rubygems

Version	Path
numb-0.21.0	lib/numb/sphenic.rb
numb-0.20.0	lib/numb/sphenic.rb
numb-0.10.0	lib/numb/sphenic.rb
numb-0.9.0	lib/numb/sphenic.rb
numb-0.8.0	lib/numb/sphenic.rb
numb-0.7.0	lib/numb/sphenic.rb
numb-0.6.1	lib/numb/sphenic.rb
numb-0.6.0	lib/numb/sphenic.rb
numb-0.5.0	lib/numb/sphenic.rb
numb-0.4.0	lib/numb/sphenic.rb
numb-0.3.5	lib/numb/sphenic.rb
numb-0.3.4	lib/numb/sphenic.rb
numb-0.3.3	lib/numb/sphenic.rb
numb-0.3.2	lib/numb/sphenic.rb
numb-0.3.1	lib/numb/sphenic.rb
numb-0.3.0	lib/numb/sphenic.rb