Sum of two adjacent numbers are primes: Difference between revisions
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(Add Factor) |
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20: 36 + 37=73 |
20: 36 + 37=73 |
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</pre> |
</pre> |
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=={{header|Factor}}== |
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{{works with|Factor|0.99 2021-06-02}} |
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<lang factor>USING: arrays formatting kernel lists lists.lazy math |
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math.primes.lists sequences ; |
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20 lprimes cdr [ 2/ dup 1 + 2array ] lmap-lazy ltake |
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[ dup sum suffix "%d + %d = %d\n" vprintf ] leach</lang> |
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{{out}} |
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<pre> |
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1 + 2 = 3 |
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2 + 3 = 5 |
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3 + 4 = 7 |
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5 + 6 = 11 |
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6 + 7 = 13 |
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8 + 9 = 17 |
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9 + 10 = 19 |
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11 + 12 = 23 |
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14 + 15 = 29 |
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15 + 16 = 31 |
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18 + 19 = 37 |
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20 + 21 = 41 |
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21 + 22 = 43 |
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23 + 24 = 47 |
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26 + 27 = 53 |
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29 + 30 = 59 |
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30 + 31 = 61 |
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33 + 34 = 67 |
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35 + 36 = 71 |
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36 + 37 = 73 |
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</pre> |
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=={{header|J}}== |
=={{header|J}}== |
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