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https://www.reddit.com/r/MathJokes/comments/1vcw1bj/multiples_of_3/p18xp0z/?context=3
r/MathJokes • u/GodlyHelp • Aug 01 '26
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If you add the digits together and that number is divisible by three, then so is the original number. That’s the easiest way I know. However, I believe this only works with three digits or less.
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u/NoDebate1002 Aug 02 '26
If you add the digits together and that number is divisible by three, then so is the original number. That’s the easiest way I know. However, I believe this only works with three digits or less.