Asked by Jack
A number n where if the sum of the dights of the number is divisible by n, then the number itself is divisible by n.
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tchrwill
A number n where if the sum of the dights of the number is divisible by n, then the number itself is divisible by n.
If the sum of a number's digits is evenly divisible by 3, the number is divisible by 3.
If the sum of a number's digits is evenly divisible by 9, the number is evenly divisible by 9.
If the sum of a number's digits is evenly divisible by 3, the number is divisible by 3.
If the sum of a number's digits is evenly divisible by 9, the number is evenly divisible by 9.
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