Question

A number whose digits add up to a multiple of 3 divisible by..... ​

Answer 1

Answer:

A number whose digits add up to a multiple of three divisible by 3.

Answer 2

Answer:

When you add the digits of any number that is divisible by three, that sum of those digits also appears to be divisible by three (with no remainder). That sum 33 is divisible by three and so is the original number 289752.