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Truncatable primes: Difference between revisions
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→{{header|REXX}}: made expression more idiomatic. -- ~~~~
(→{{header|REXX}}: updated output (the old data was from a run for 100k, not 1m). -- ~~~~) |
m (→{{header|REXX}}: made expression more idiomatic. -- ~~~~) |
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p.1=2; p.2=3; p.3=5; p.4=7; p.5=11; p.6=13; p.7=17 /*some low primes.*/
!.2=1; !.3=1; !.5=1; !.7=1; !.11=1; !.13=1; !.17=1 /*low prime flags.*/
n=7; s.
/*───────────────────────────────────────generate more primes ≤ high. */
do j=p.n+2 by 2 to high /*only find odd primes from here.*/
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