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0 pointsJtsummers1y ago0 comments

Not necessarily. The sum of the digits ranges from 36-45, there are 10 possible digits of which 9 will be used. If, say, 5 were the unused number then it would not be divisible by 9.

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lern_too_spel1y ago

You're right. I misread the question. It's 9 of the 10 digits 0-9 instead of all 9 digits 1-9 as in sudoku.

amyres1y ago

Exactly. The actual solution to the puzzle in question has a GCD not divisible by 9.

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