Sha256: 1ee585e6c42f16ea56c65c2cbf82e52629f755717ea6c342b43ebe153c0e64a2
Contents?: true
Size: 683 Bytes
Versions: 14
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Stored size: 683 Bytes
Contents
describe Integer, "#superabundant?" do
# A004394
SUPERABUNDANT = [1,2,4,6,12,24,36,48,60,120,180,240,360,720,840,
1260,1680,2520,5040,10080,15120,25200,27720,55440,
110880,166320,277200,332640,554400,665280,720720,
1441440,2162160,3603600,4324320,7207200,8648640,
10810800]
SUPERABUNDANT.first(20).each do |n|
it "should return true for superabundant number #{n}" do
n.should be_superabundant
end
end
((1..SUPERABUNDANT.last).first(20) - SUPERABUNDANT).each do |n|
it "should return false for non-superabundant number #{n}" do
n.should_not be_superabundant
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems