Question

Which of the following numbers are divisible
by 11?
a) 573243
b) 2105963

Answer 1

Answer:

a) 573243 . This number is divisible by 11.

hope my answer helps you.

Answer 2

Divisibility by 11

➜ Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number.

a) 573243

➜ 5-7+3-2+4-3

➜ 0

0 is not divisible by 11.

0 is not divisible by 11.So, 573243 is not divisible by 11.

b) 2105963

➜ 2-1+0-5+9-6-3

➜ -4

-4 is not divisible by 11.

is not divisible by 11.So, 2105963 is not divisible by 11.