De Polignac numbers: Difference between revisions
→{{header|Ruby}}: attribution added
(→{{header|Ruby}}: Better way to find pow2) |
(→{{header|Ruby}}: attribution added) |
||
Line 1,312:
=={{header|Ruby}}==
Using Thundergnats observation that it is enough to subtract powers of 2 and verify that none of the results is prime.
<syntaxhighlight lang="ruby">require 'prime'
| |||