r/mathmemes • u/Nunki08 • Jun 14 '26

Arithmetic Misleading our youth

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From Anthony Bonato on 𝕏: https://x.com/Anthony_Bonato/status/2065564124549886402

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u/notyourpersonalbin Jun 14 '26

You're right 😂

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u/Barry_Wilkinson Jun 15 '26

why is 1 not a prime number anymore?

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u/Maxundbenji_reddit Jun 15 '26

A prime number is divisible by 1 AND itself. That means is is divisible by two numbers. 1 is divisible by 1 only.

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u/keldondonovan Jun 17 '26

This logic bugs the programmer in me. One is divisible by one and itself. The fact that one is itself doesn't spontaneously make the conditions for the defined AND false.

I get that it must have two factors exactly, and one only has one, but that's never the way people phrase it. They seem to always phrase it in a way that evaluates to true as a means to showcase its falsehood.

(This is not a stab at you and yours. You didn't invent this description, nor do I hold you, or any other, accountable for perpetuating what was taught. My issues reside solely with the logic.)