Dyskusje Q&A

If sum of digits of a number is divisible by 3, then the number is divisible by 3. But Why? I need the proof.
numbertheory.programming
2 głosów
4 odpowiedzi
26th Jun 2019, 9:22 AM
Neaj Morshad Ashik
Neaj Morshad Ashik - avatar
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