Question

Divisiblity rule of seven

Answer 1

Answer:

DIVISIBILITY RULE OF 7 :

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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Answer 2

Answer:

Divisibility rule of 7-First double the last digit of the number then subtract it from the remaining digits If the difference is divisible by seven or if it is 0 then the number is divisible by seven.

example-

234

double the last digit  

4*2=8

remaining digit=23

Subtract-23-8=15

15

Not divisible by seven

So 234 is not divisible by seven