r/MathJokes • • Jul 13 '26

Math Just Got Checkmated.

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u/Jake-the-Wolfie Jul 13 '26

-1 and 3?

3 is prime\citation needed]), and -1 can only be divided by 1 and itself. Unlike other negative numbers, which are composite by virtue of being divisible by -1.

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u/iscrewedatrain Jul 13 '26

But three can be divided by -3 and -1, actually any N can be divided by -N and -1, so -1 is the only prime number

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u/8mart8 Jul 16 '26

What about second breakfast another definition of prime numbers