Discussions Q&R

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 Votes
4 RĂ©ponses
26th Jun 2019, 9:22 AM
Neaj Morshad Ashik
Neaj Morshad Ashik - avatar
Aujourd'hui en vedette
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