"Prime Factorization" is finding which prime numbers multiply together to make the original number.
For Example:
1)It is best to start working from the smallest prime number, which is 2, so let's check: 60:2=30
2)Yes, it divided evenly by 2. We have taken the first step!But 30 is not a prime number, so we need to go further. Let's try 2 again: 30:2=15
3) 15 is not a prime number because we can divide 15 by 5: 15:5=3
4)Yes, that worked also. And 3 is a prime number, so we have the answer: 60= 2x2x15
32= 2x5 because 32:2=16 / 16:2=8 / 8:2=4 / 4:2=2 / 2:2=1 so 1 is a prime number.