These factorization worksheets are great for practicing finding all of the prime factors contained in a number. The Prime Factorization Tree is a 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. These factorization worksheets will generate 6 Prime Factorization Tree problems per worksheet and the answer key is generated.

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**Factors Worksheets**