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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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import "/math" for Int
import "/rat" for Rat
System.print("The following numbers (less than 2^19) are perfect:")
for (i in 2...(1<<19)) {
var sum = Rat.new(1, i)
for (j in Int.properDivisors(i)[1..-1]) sum = sum + Rat.new(1, j)
if (sum == Rat.one) System.print(" %(i)")
}