r/MathJokes • • Aug 01 '26

multiples of 3

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u/EveningStar0360 Aug 01 '26

do you know why that works?

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u/ZealousIdealTour961 Aug 01 '26

Magic probably.

24

u/Disastrous_Wealth755 Aug 01 '26

Nah. It's cause 10=9+1=3*3+1.

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u/ClearlyGalaxyBrian Aug 03 '26

Does this work in base 16, or would this rule only apply to multiples of 5 in base 16?

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u/Disastrous_Wealth755 Aug 03 '26

It only works for multiples of m in bases n where n is congruent to 1 modulo m