The Card Number Validation hole will go live in . Why not try and solve it ahead of time?

alexsave

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14 / 108 Holes

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1 / 58 Langs

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10 / 75 Cheevos

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Prime Numbers in JavaScript in Chars Play Hole

191st in JavaScript and 2,359th overall.

Last tested .

Bytes Chars Submitted
56 56
57 57
62 62
70 70
71 71
74 74
75 75
76 76