Is there is any divisiblity test for 7??
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To check if a number is evenly divisible by 7: Take the last digit of the number, double it Then subtract the result from the rest of the number If the resulting number is evenly divisible by 7, so is the original number.
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Take the last digit of the number, double it Then subtract theresult from the rest of the number If the resulting number is evenly divisible by 7, so is the original number.
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