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require File.expand_path('../../../../spec_helper', __FILE__)
ruby_version_is ''...'2.5' do
require 'mathn'
describe "Integer.from_prime_division" do
it "reverses a prime factorization of an integer" do
Integer.from_prime_division([[2, 1], [3, 2], [7, 1]]).should == 126
end
end
end
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