Question

test the divisiblity of the following numbers by 3: 524781​

Answer 1

Answer:

it is divisible by 3 a sum of its digits is also divisible by 3

Answer 2

Answer:

The divisibility rule of 3 is that the sum of all the digits should be divisible by 3.

So, 5 + 2 + 4 + 7 + 8 + 1 = 27

27 is divisible by 3, so 524781 is also divisible by 3..