Download presentation

1
Factors Use the prime factorization of two whole numbers to determine the greatest common factor and the least common multiple.

2
Factors Factor: Any one of the numbers multiplied in a multiplication problem. Factor: A whole number that divides another whole number without a remainder.

3
Prime Numbers A counting number greater than 1, whose only two factors are the number 1 and itself. Examples: 2: 1x2 3: 1x3 5: 1x5 7: 1x7 11: 1x11

4
Composite Number A counting number greater than 1 that is divisible by a number other than itself and 1. Every composite number has at least three factors. Every composite number can be expressed as a product of two or more prime numbers. Examples: 4: 1, 2, 4 6: 1, 2, 3, 6

5
**Greatest Common Factor (GCF)**

The largest whole number that is a factor of two or more given numbers. Example 15: 1, 3, 5, 15 20: 1, 2, 4, 5, 10, 20 What factors do 15 and 20 have in common? 1 and 5 Which one of the factors is greatest or largest? 5, therefore 5 is the Greatest Common Factor

6
**Least Common Multiple (LCM)**

The smallest whole number that is a multiple of two or more given numbers. Reminder: A multiple is a product of a counting number and another number. Example: The multiples of 3: 3, 6, 9, 12, 15, 18, 21, …

7
**LCM Find the LCM of 4 and 6 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, …**

6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, … What multiples do 4 and 6 have in common? 12, 24, 36 Which is the least or smallest? 12

8
**Your Turn Find the Greatest Common Factor of 12 and 15.**

12: 1, 2, 3, 4, 6, 12 15: 1, 3, 5, 15 The GCF of 12 and 15 is 3 Find the Least Common Multiple of and 8. 6: 6. 12, 18, 24, 30, … 8: 8, 16, 24, 32, 40, … The LCM of 6 and 8 is 24

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google