CFkids3 CFkids3

25-09-2018
Mathematics

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The sum of all factors of 15 is the 3rd multiple of a number. What is the number?

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sameedfarooqui6 sameedfarooqui6

25-09-2018

The number is 8

The factors of 15 add up to 24, and 8x3=24 because it is its 3rd multiple

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