Prime Factorization

Your learners will get plenty of prime factoring practice with this one-page math worksheet. 

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Instructional Ideas

  • For some learners, the visual of creating a factor tree is helpful scaffolding when they first start learning how to prime factor

  • Includes answer key

  • The key has two mistakes. Here are the fixes: the prime factorization of 96 is 3*2*2*2*2*2 and 101 is already prime. Remember that the number one is neither prime nor composite