Question

divisibility rule of 7​

Answer 1

Step-by-step explanation:

Proving Divisibility Rules

Prove that when a number is divisible by 7 , 7, 7, the result when subtracting twice the last digit from the number formed by the remaining digits is a multiple of 7.

Answer 2

Step-by-step explanation:

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The divisibility rule of 7 states that for a number to be divisible by 7, the last digit of the given number should be multiplied by 2 and then subtracted with the rest of the number leaving the last digit. If the difference is 0 or a multiple of 7, then it is divisible by 7.