Prime numbers whose neighboring pairs are tetraprimes: Difference between revisions
Prime numbers whose neighboring pairs are tetraprimes (view source)
Revision as of 14:32, 25 June 2023
, 11 months ago→{{header|J}}
(J draft) |
m (→{{header|J}}) |
||
Line 600:
{{y#~*/tetrap 1 2+/y}} primeslt 1e5
8293 16553 17389 18289 22153 26893 29209 33409 35509 36293 39233 39829 40493 41809 45589 48109 58393 59629 59753 59981 60493 60913 64013 64921 65713 66169 69221 71329 74093 75577 75853 77689 77933 79393 79609 82913 84533 85853 87589 87701 88681 91153 93889...
NB. (3a) how many primes from (1) have 7 in a factor of a number in the preceeding pair?
+/0+./ .=7|1 2-~/{{y#~*/tetrap 1 2-~/y}} primeslt 1e5
31
NB. (3b) how many primes from (2) have 7 in a factor of a number in the following pair?
+/0+./ .=7|1 2+/{{y#~*/tetrap 1 2+/y}} primeslt 1e5
36
Line 630:
(<./,>./)2 -~/\{{y#~*/tetrap 1 2+/y}} primeslt 1e6
4 10284</syntaxhighlight>
=={{header|Julia}}==
| |||