Math, asked by adnan366, 11 months ago

How to know the divisibility of 7?

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Answered by adi6824

To determine if a number is divisible by 7, take the last digit off the number, double it and subtract the doubled number from the remaining number. If the result is evenly divisible by 7 (e.g. 14, 7, 0, -7, etc.), then the number is divisible by seven.

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