Truncatable primes: Difference between revisions
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m (→{{header|REXX}}: changed some comments.) |
m (→{{header|REXX}}: changed a comment.) |
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do k=5 while s.k<=j /* [↓] divide by the known odd primes.*/ |
do k=5 while s.k<=j /* [↓] divide by the known odd primes.*/ |
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if j // @.k == 0 then iterate j /*Is J ÷ X? Then not prime. ___ */ |
if j // @.k == 0 then iterate j /*Is J ÷ X? Then not prime. ___ */ |
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end /*k*/ /* [↑] only process |
end /*k*/ /* [↑] only process numbers ≤ √ J */ |
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#= #+1; @.#= j; s.#= j*j; !.j= 1 /*bump # of Ps; assign next P; P²; P# */ |
#= #+1; @.#= j; s.#= j*j; !.j= 1 /*bump # of Ps; assign next P; P²; P# */ |
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end /*j*/ |
end /*j*/ |
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