Prime Factorization

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
5678 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

This lesson teaches the viewer how to write the prime factorization of a number using methods such as a factor tree and identifying prime numbers. The goal is to be given a number and be able to figure out its prime factorization. The lesson includes examples of prime factorization for numbers such as 10, 20, 36, and 150, and shows how there are multiple correct ways to write the prime factorization. The lesson also explains how to identify if a number is prime and includes an example of using the upside down division method to find the prime factorization of a number.

Lesson Description:

Methods for how to write the prime factorization of a number...Factor tree, etc.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • What is the prime factorization of 126?
  • How do you find the prime factors of a number?
  • What is prime factorization?
  • What are prime numbers?
  • How do you write the prime factorization of a number?
  • What is the prime factorization of 10?
  • What is the prime factorization of 20?
  • What is the prime factorization of 36?
  • How do you write the prime factorization of a number using exponents?
  • What is the prime factorization of 150?
  • What is a factor tree?
  • How can you find the prime factorization of a number using a factor tree?
  • How do you find the prime factorization of 182 using a factor tree?
  • What is the divisibility test for 7?
  • How can you tell if 7 goes into a number?
  • How do you find the prime factorization of 392 using a factor tree?
  • How can you use upside down division to find the prime factorization of a number?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson explains factoring a number into its prime factors, or prime factorization. Many example problems are shown and explained. Factor trees and upside down division methods are shown for finding a number's prime factorization.