text: whats the prime factorization of 100?   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.