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Prime Factorization of 18 | Math with Mr. J

From Math with Mr. J

Prime Factorization of 18 | Math with Mr. J
3 min5th6thMath
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Summary

How to find the prime factorization of a number using a factor tree -- breaking it down into a product of primes. Mr. J shows the tree step by step.

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All ages

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Teaching resources

Discussion questions

Every whole number greater than 1 can be written as a product of prime numbers.

  1. What is a prime number?
  2. How does a factor tree help you find the prime factorization?
  3. How do you know when a branch is finished?

Quick work-a-long

Words to know: prime, factor, factor tree, product

  • Make a factor tree for 24.
  • Write the prime factorization of 36.
Prime Factorization of 18 | Math with Mr. J — TV on a Rolling Cart