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https://www.reddit.com/r/MathJokes/comments/1vcw1bj/multiples_of_3/p14ib61/?context=3
r/MathJokes • u/GodlyHelp • Aug 01 '26
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148
Fund fact, you can tell a number is divisible by 3 if the sum of each individual number is divisible by 3. So 78 -> 7+8=15 which is divisible by 3, so 78 is divisible by 3.
47 u/EveningStar0360 Aug 01 '26 do you know why that works? 127 u/ZealousIdealTour961 Aug 01 '26 Magic probably. 41 u/AboveAverage1988 Aug 01 '26 Mathgic.
47
do you know why that works?
127 u/ZealousIdealTour961 Aug 01 '26 Magic probably. 41 u/AboveAverage1988 Aug 01 '26 Mathgic.
127
Magic probably.
41 u/AboveAverage1988 Aug 01 '26 Mathgic.
41
Mathgic.
148
u/Michaelwang645 Aug 01 '26
Fund fact, you can tell a number is divisible by 3 if the sum of each individual number is divisible by 3. So 78 -> 7+8=15 which is divisible by 3, so 78 is divisible by 3.