Find adjacent primes which differ by a square integer: Difference between revisions
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997877 - 997813 = 64 |
997877 - 997813 = 64 |
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</pre> |
</pre> |
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=={{header|Sidef}}== |
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<lang ruby>var p = 2 |
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var upto = 1e6 |
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each_prime(p.next_prime, upto, {|q| |
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if (q-p > 36 && is_square(q-p)) { |
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say "#{'%6s' % q} - #{'%6s' % p} = #{'%2s' % isqrt(q-p)}^2" |
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} |
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p = q |
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})</lang> |
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{{out}} |
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<pre> |
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89753 - 89689 = 8^2 |
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107441 - 107377 = 8^2 |
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288647 - 288583 = 8^2 |
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368021 - 367957 = 8^2 |
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381167 - 381103 = 8^2 |
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396833 - 396733 = 10^2 |
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400823 - 400759 = 8^2 |
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445427 - 445363 = 8^2 |
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623171 - 623107 = 8^2 |
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625763 - 625699 = 8^2 |
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637067 - 637003 = 8^2 |
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710777 - 710713 = 8^2 |
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725273 - 725209 = 8^2 |
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779477 - 779413 = 8^2 |
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801947 - 801883 = 8^2 |
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803813 - 803749 = 8^2 |
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821741 - 821677 = 8^2 |
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832583 - 832519 = 8^2 |
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838349 - 838249 = 10^2 |
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844841 - 844777 = 8^2 |
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883871 - 883807 = 8^2 |
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912167 - 912103 = 8^2 |
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919511 - 919447 = 8^2 |
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954827 - 954763 = 8^2 |
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981887 - 981823 = 8^2 |
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997877 - 997813 = 8^2 |
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</pre> |
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=={{header|Wren}}== |
=={{header|Wren}}== |
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{{libheader|Wren-math}} |
{{libheader|Wren-math}} |