14 lines
244 B
Text
14 lines
244 B
Text
func is_even_perfect(n) {
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var square = (8*n + 1)
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square.is_square || return false
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var t = ((square.isqrt + 1) / 2)
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t.is_smooth(2) || return false
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t-1 -> is_prime
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}
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for n in (1..10000) {
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say n if is_even_perfect(n)
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}
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