Count through numbers 1-20. With each number, ask the following question:
What numbers can you multiply to equal ____ ?
Keep in mind that "1" is not a prime number officially because it can be divided by all numbers. However, it is included in prime factorization.
Write out the numbers 1-20 on a piece of paper. With each number, write out the numbers you must multiply to equal that number. Here is an example:
8 = 2 X 2 X 2
Identify which numbers in your multiplication list are prime numbers. In this case, all the numbers in the prime factorization of "8" are prime numbers.