Question

Hello how do you know that a number is divisible by 7​

Answer 1

Answer:

14,21,28,35,42,49,56,63.......etc

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Answer 2

Answer:

• Take the last digit of the number you’re testing and double it.

• Subtract this number from the rest of the digits in the original number.

• If this new number is either 0 or if it’s a number that’s divisible by 7, then you know that the original number is also divisible by 7.

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