This factor worksheet is great for practicing finding the Prime Factors for a number. Understanding Factors are key for working with fraction problems. The problems may be selected from four different number ranges. The easiest will keep the numbers below 50, and the hardest will keep the numbers below 200. This factor worksheet will generate 10, 15 or 20 Prime Factor problems per worksheet, and remember every time you create a worksheet the problems will change and will not repeat.
Example: The Prime Factors of 12 are 2 , 3.