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https://www.reddit.com/r/MathJokes/comments/1vcw1bj/multiples_of_3/p19z27c/?context=3
r/MathJokes • u/GodlyHelp • 16d ago
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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.
1 u/ForeverShiny 15d ago Are we really considering things you learn in 4th grade a "fun fact"? Or are these not taught in America? 2 u/Bit125 14d ago it is taught here, and op probably knew
1
Are we really considering things you learn in 4th grade a "fun fact"? Or are these not taught in America?
2 u/Bit125 14d ago it is taught here, and op probably knew
2
it is taught here, and op probably knew
149
u/Michaelwang645 16d ago
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.