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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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factors=: {{ */@>,{(^ [:i.1+])&.>/__ q:y}}
isArith=: {{ (= <.) (+/%#) factors|y}}"0

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examples=: 1+I.isArith 1+i.2e6
10 10$examples
1 3 5 6 7 11 13 14 15 17
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77 78 79 83 85 86 87 89 91 92
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(1e3-1){examples NB. 0 is first
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(1e4-1){examples
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+/0=1 p: (1e3 {. examples) -. 1
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+/0=1 p: (1e4 {. examples) -. 1
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+/0=1 p: (1e6 {. examples) -. 1
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