Asked by Jack

The two-dight number that is divisible by both the sum and the product of its digits?

18 years ago

Answered by drwls

I'd use trial-and-error rather than algebra for this. It has to be a non-prime number between 10 and 99. Start with 10. How about 12?

18 years ago

Answered by tchrwill

How about 12, 24, and 36.

18 years ago

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