Question

. A number is divisible by 27. By which other numbers will that number be
divisible?

Answer 1

Answer:

mpDivisor Divisibility condition

26 It is divisible by 2 and by 13.

Subtracting 5 times the last digit from 2 times the rest of the number gives a multiple of 26

27 Sum the digits in blocks of three from right to left.

Subtract 8 times the last digit from the rest.

Answer 2

Answer:

To determine if a number is divisible by 7, take the last digit off the number, double it and subtract the doubled number from the remaining number. If the result is evenly divisible by 7 (e.g. 14, 7, 0, -7, etc.), then the number is divisible by seven.

Step-by-step explanation: