What is the greatest common factor of 27 and 45?

Answer 1

The Highest or Greatest Common Factor of 27 and 45 = 9

Factors of 27 are 1, 3, 9, and 27.

Factors of 45 are 1, 3, 5, 9, 15, and 45.

The GCF of 27 and 45 is 9.
The Greatest Common Factor (GCF) of 27 and 45 is 9.

Answer 2

The greatest common factor (GCF) of 27 and 45 is 9. To find the GCF, you can list the factors of each number and then identify the largest number that is common to both lists. The factors of 27 are 1, 3, 9, and 27, while the factors of 45 are 1, 3, 5, 9, 15, and 45. The largest number that appears in both lists is 9, making it the greatest common factor of 27 and 45.

Answer 3

45= 5 x 3 x 3

27= 3 x 3 x 3

GCF = 3 x 3

GCF = 9

Answer 4

The same as the greatest common factor of 27 and 18. (18 is the remainder of the division of 45 by 27.)

Answer 5

GCF(27, 45) = 9.

Answer 6

It is: 9

Answer 7

18

Answer 8

9