This fraction worksheet is great for practicing finding all of the prime factors contained in a number. The Prime Factorization Trees are great visual aids. The problems may be selected from two different degrees of difficulty. The easiest limits the number of prime factors for each problem to 3 or 4, and the hardest will allow the number of prime factors to be up to 5. This fraction worksheet will generate 6 Prime Factorization Tree problems per worksheet and the answer key is generated. Each time you create a worksheet the problems will change and will not repeat.

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**Fractions Worksheets**