How can you tell if a division problem as a remainder without dividing

- - Take the number to be divided.

- - Find all of its factors.

- - If you divide it by one of its factors, then there will be no remainder.

- - If you divide it by any other number, then there will be a remainder.

If there's factors there is no remainders but if there no factors is then is has to have a remainder its like the opposite