1 / 14

GREATEST COMMON FACTOR

GREATEST COMMON FACTOR. G REATEST C OMMON F ACTOR GCF. The largest factor two or more numbers have in common. To find the GCF of two or more numbers, you can make a list of all the factors or use prime factorization. Make a list. List all of the factors of each number.

stevie
Télécharger la présentation

GREATEST COMMON FACTOR

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GREATEST COMMON FACTOR

  2. GREATEST COMMON FACTORGCF • The largest factor two or more numbers have in common. • To find the GCF of two or more numbers, you can make a list of all the factors or use prime factorization.

  3. Make a list • List all of the factors of each number. • Identify the common factors. • The greatest of the common factors is the GCF.

  4. Make a list 1, 2, 3, 4,6, 8, 12, 24 24 = 32 = 1, 2, 4, 8, 16, 32 32 1 x 32 2 x 16 4 x 8 24 1 x 24 2 x 12 3 x 8 4 x 6 The common factors are: 1, 2, 4, 8 The GCF = 8

  5. Use Prime Factorization • Write the prime factorization of each number. • Identify all of the common prime factors. • The product of the common prime factors is the GCF.

  6. Use Prime Factorization 2 2 2 3 24 = 32 = 24 ^ 6 x 4 ^ ^ 2 x 3 2 x 2 24=2 x 2 x 2 x 3

  7. Use Prime Factorization 2 2 2 3 24 = 32 = 2 2 2 2 2 32 ^ 4 x 8 ^ ^ 2 x 2 2 x 4 ^ 2 x 2 32=2 x 2 x 2 x 2 x 2

  8. Use Prime Factorization 2 2 2 3 24 = 32 = 2 2 2 2 2 2 2 2 x x 4 2 x The GCF = 8

  9. Use Prime Factorization 3 5 15 = 45 = 3 5 3 3 5 x 15 = 3 x 5 15 45 = 3 x 3 x 5 The GCF = 15

  10. Use Prime Factorization 2 3 6= 44 = 2 2 11 2 6 = 2 x 3 44 = 2 x 2 x 11 The GCF = 2

  11. Use Prime Factorization 5 5 25 = 56 = 2 2 2 7 25 = 5 x 5 56 = 2 x 2 x 2 x 7 The GCF = 1

  12. Use Prime Factorization 5 5 25 = 56 = 2 2 2 7 If there are no common prime factors the GCF is one. The GCF = 1

  13. Use Prime Factorization 11 11 = 22 = 11 2 11 11 = prime number 22 = 2 x 11 The GCF = 11

  14. Use Prime Factorization 2 2 3 12 = 18 = 60 = 2 3 3 5 2 2 3 2 3 12 = 2 x 2 x 3 x 18 = 2 x 3 x 3 60 = 2 x 2 x 3 x 5 The GCF = 6

More Related