What is the greatest common factors of 9 and 27

A.3
B.6
C.9
D.18
C?

Right.

1.What is he greates common factor of 36 and 24

A.9
B.12
C.18
D.108
B?

Erin needs to find the greatest commo factor of 24 and 18 to help her find it answer each part below.
A. list the factor pairs of 24
1x24
2x12
3x8
4x6

B.Factor pairs for 18
1x18
2x9
3x6

C.Common factors of 24 and 18
1 2 6

The greatest common factor of 24 and 18
6

Am I missing and factor pairs for B and C?

All are correct, except you missed 3 as a common factor of 24 and 18.

To find the greatest common factor (GCF) of 9 and 27, you can use the method of prime factorization.

First, we list the prime factors of each number:

- The prime factorization of 9 is 3 x 3.
- The prime factorization of 27 is 3 x 3 x 3.

To find the GCF, we need to find the common prime factors and multiply them together. In this case, the only common prime factor is 3.

So, the GCF of 9 and 27 is 3.

Therefore, the correct answer is A. 3.