SiS Quickie: Aged to Perfection

A “perfect” number is one whose factors (other than itself) add up itself. (Remember that the factors of a number are the numbers that it is divisible by.) Six is perfect: its factors are one, two, and three, which add up to six.

The next perfect number after six is 28.

Numbers can be perfect. People can’t be, but some definitely come closer than others.

So I’d like to wish a happy 28th birthday to the SigFig.

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