Super-Poulet numbers: Difference between revisions
Content added Content deleted
(Added Wren) |
(→{{header|Wren}}: Tweak, bit quicker.) |
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import "./gmp" for Mpz |
import "./gmp" for Mpz |
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import "./fmt" for Fmt |
import "./fmt" for Fmt |
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var one = Mpz.one |
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var isSuperPoulet = Fn.new { |x| |
var isSuperPoulet = Fn.new { |x| |
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if (Int.isPrime(x)) return false |
if (Int.isPrime(x)) return false |
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var bx = Mpz.from(x) |
var bx = Mpz.from(x) |
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if (Mpz.two.modPow( |
if (Mpz.two.modPow(x-1, bx) != one) return false |
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var t = Mpz.new() |
var t = Mpz.new() |
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return Int.divisors(x).skip(1).all { |d| t.uiPow(2, d).sub(2).isDivisibleUi(d) } |
return Int.divisors(x).skip(1).all { |d| t.uiPow(2, d).sub(2).isDivisibleUi(d) } |
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