Science Memes

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And 299999999 is divisible by 13 (lemmy.world)

submitted 2 weeks ago by [email protected] to c/[email protected]

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[–] [email protected] 8 points 2 weeks ago (2 children)

Well, on the side of easy ones there is "if the last digit is divisible by 2, whole number is divisible by 2". Also works for 5. And if you take last 2 digits, it works for 4. And the legendary "if it ends with 0, it's divisible by 10".

[–] [email protected] 9 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

There’s also the classic “no three positive integers a, b, and c to satisfy a**n + b**n = c**n for values of n greater than 2“ trick but my proof is too large to fit in this comment.

[–] [email protected] 2 points 2 weeks ago

Fucking lol

[–] [email protected] 3 points 2 weeks ago (1 children)

Its never divisible by zero, and its always divisible by one

[–] [email protected] 3 points 2 weeks ago (1 children)

Never say never. 1/0 = 0

[–] [email protected] 1 points 2 weeks ago

Interesting read. Thank you.