Download presentation
Presentation is loading. Please wait.
Published byDebra Bailey Modified over 10 years ago
1
Factor Tree’s and Prime Factorization Section 4-2
2
Bell Ringer # Prime or composite? 1) 19 2) 82 3) 57 4) 85 5) 101 6) 121
3
Vocabulary Factor: Whole numbers that are multiplied to find a product are called factors. Prime Factorization: The prime factorization of a number is that number written as a product of prime factors.
4
Finding factors To find the factors of a number. Simply list the two numbers that when multiplied together, equal that number
5
Example 1 Find all the factors of 18 1 * 18 = 18 2 * 9 = 18 3 * 6 = 18 So the factors of 18 are 1, 2, 3, 6, 9, 18.
6
Example 2 Find all the factors of 13 1 * 13 = 13 Nothing else gets you 13, so the factors of 13 are just 1 and 13 because 13 is a prime number.
7
Example 3 Find all the factors of 24
8
On your own Find all the factors of 16.
9
Factor Trees Factor trees are something we use to help us find the prime factorization of a number.
10
Example 4 36 36
11
Example 5 64 64
12
Example 6 54 54
13
Lesson quiz Find all the factors of 21 Find the prime factorization of 24
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.