Sum of two adjacent numbers are primes: Difference between revisions

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