Prime Factorization Worksheets – 5th Grade Math Worksheets & Pdfs

Here are five prime factorization worksheets to help 5th grade math students and teachers. These printable pdfs are great for any student looking for a bit of extra prime factorization practice. They’re also useful for math teachers looking for homework worksheets to hand out to their students. Additionally, these prime factorization worksheets will help rising 6th graders review for the upcoming school year. Finally, eager and sharp 4th grade students looking ahead may find these beneficial too.

Each primate factorization worksheet below has a difficulty rating between 1 and 5 stars, with 1 star being the easiest, and 5 stars being the hardest. If you can zip through the 5 star challenge, kid, you’re a veritable math whiz!

In addition to the worksheets, I have provided a printable hundreds chart pdf with highlighted prime numbers. By allowing children to use this chart as a reference while they complete these prime factorization worksheets, they’ll gain exposure to less common prime factors they’d otherwise forget.

Prime Factorization Worksheet 1: Difficulty 1/5 Stars

prime factorization worksheets


Prime Factorization Worksheet 2: Difficulty 2/5 Stars

prime factorization worksheets

Prime Factorization Worksheet 3: Difficulty 3/5 Stars

prime factorization worksheets


Prime Factorization Worksheet 4: Difficulty 4/5 Stars

prime factorization worksheets

Prime Factorization Worksheet 5: Difficulty 5/5 Stars

prime factorization worksheets

Prime Numbers Chart

All the prime numbers between 1 and 100 are highlighted in gray.

prime numbers chart

Each of these prime factorization worksheets was created by Tim van de Vall and is copyright 2013 Dutch Renaissance Press LLC. They may be used for personal and educational purposes only. Commercial use of these printable worksheets is prohibited. If you are unable to open the PDF files on your computer, you may need a newer version of Adobe Acrobat Reader, which is free.

All information is accurate to the best of my knowledge. However, there is always the chance that I overlooked something or made a mistake. If you see such an error, please let send me an email, and I will look into the mistake as quickly as possible. That said, all the content on this site should be used at your own risk. I am not liable for any mistakes, mishaps or damages incurred by the use of these materials.

1 thought on “Prime Factorization Worksheets – 5th Grade Math Worksheets & Pdfs”

  1. Thank you for the prime factorization worksheets. My students loved doing these! They started at one star and worked their way up – it allowed everyone to be working even my struggling math students!

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