Prime Factorization Worksheet with Answer Key

What's on the worksheet

1. Use a factor tree to find each prime factorization, with exponents, and check it.
   72150156231288
2. Use the ladder method to find each prime factorization, then fill in a missing exponent.
   2523251,0782,0251,716
3. Fill in the missing exponent in a prime factorization of 396.
4. Word problem: pack 105 bars of soap in a block and find the possible dimensions.
5. Find the smallest numbers with particular kinds of prime factorizations.
6. Fill in the missing numbers in Jasmine's factor tree and write the factorization.
7. Explain what is wrong with Emma's ladder answer for 1,260 and find the correct factorization.