4 ms·
Is This Prime?
- dekervin 4y agoWell done !
- jakabia 4y agoGood job! I managed to get 9 correct answers in a line by just randomly pressing "y" and "n", I'm so proud of myself.
- kadoban 4y agoWay more fun than it should be. Multiples of 3 are the worst, at least for me. Using the trick to check those helps a lot (sum the digits, it's div-by-3 iff the sum of digits is div-by-3).