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<?php $n = 56456457373737377; if ($n == 1) { echo 'Not a Prime or Composite No.'; } $set = 0; for ($index = 2; $index <= $n/2; $index++) { if ($n % $index === 0) { $set = 1; break; } } if ($set) { echo 'Composite'; } else { echo 'Prime'; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Composite
preferences:
259.7 ms | 406 KiB | 357 Q