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7 April, 04:20

A number in which each digit except 0 appears exactly 3 times is divisible by 3. for example, 777,555,222 and 414,143,313 are divisible by 3. explain why this is true

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  1. 7 April, 06:32
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    The sum of digits of such a number is a multiple of 3. According to the divisiblity rule for 3, that is all that is required for a number to be divisible by 3.
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