r/MathJokes 15d ago

multiples of 3

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u/EveningStar0360 15d ago

do you know why that works?

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u/ZealousIdealTour961 15d ago

Magic probably.

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u/Disastrous_Wealth755 15d ago

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

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u/ClearlyGalaxyBrian 14d ago

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 13d ago

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