Question

Apply the divisibility rule of 13 and 7 on 14025. ​

Answer 1

Answer:

Test for divisibility by 13.

Add four times the last digit to the remaining leading truncated number. If the result is divisible by 13, then so was the first number. Apply this rule over and over again as necessary.

Divisibility by 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.