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Find the Nth number divisible by only 2,3,5, or 7

I recently participated in a small friendly competition and this was one of the questions: A number whose only prime factors are 2, 3, 5 or 7 is called a humble number. The first 20 humble numbers ...

txizzle

asked Nov 13, 2015 at 8:52

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Find the Nth number divisible by only 2,3,5, or 7

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