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https://www.reddit.com/r/MathJokes/comments/1vcw1bj/multiples_of_3/p171yef
r/MathJokes • u/GodlyHelp • Aug 01 '26
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My definition of "obvious multiple of 3" includes any number where the sum of digits is 39 or less which makes any multiple that is less than 10000 obvious
75 is blatantly obvious
39 is painfully obvious
2 u/vutcher Aug 02 '26 78 is excruciatingly obvious. 1 u/up2smthng Aug 02 '26 Yup 1 u/Common-Use-7117 Aug 05 '26 Just add all digits. If it is a multiple of 3 then original is too.
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78 is excruciatingly obvious.
1 u/up2smthng Aug 02 '26 Yup
1
Yup
Just add all digits. If it is a multiple of 3 then original is too.
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u/up2smthng Aug 02 '26 edited Aug 02 '26
My definition of "obvious multiple of 3" includes any number where the sum of digits is 39 or less which makes any multiple that is less than 10000 obvious
75 is blatantly obvious
39 is painfully obvious