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Why Does The Divisible By 3 Rule Work? [Solved]
Multiples of 3 and 9 A number is divisible by 3, or 9, if the sum of its digits is divisible by 3 or 9. For example, 89474 is divisible by 3 if 8+9+4+7+4 = 32 is divisible by 3, (which is divisible by 3 if 3+2=5 is divisible by 3). Since it’s not, 89474 is not divisible by 3. Click to read why these tests work.
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Why does the divisibility by 3 rule work?
Why Does The Divisibility By 3 Rule Work
