text: Divide 100 into 2 numbers, for instance 50 and 2. Write those down. 2 is a prime number, so cannot be divided further. Divide 50 into 2 numbers. Write down all the prime numbers you have. You should end up with 5 x 5 x 2 x 2 for your final answer. If you multiply these prime numbers together, you get 100! Do similar problems the same way.