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Is This Prime?

by DarkContinent on 10/6/22, 9:11 PM with 3 comments

• by kadoban on 10/7/22, 6:44 PM

  Way 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).

• by jakabia on 10/7/22, 11:55 AM

  Good job!

  I managed to get 9 correct answers in a line by just randomly pressing "y" and "n", I'm so proud of myself.

• by dekervin on 10/7/22, 9:55 AM

  Well done !