What is the GCF of 54 90 and 63?

Answer 1

The factors of 50 are:

1, 2, 5, 10, 25, 50

The factors of 63 are:

1, 3, 7, 9, 21, 63

The factors of 90 are:

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

The Greatest Common Factor (GCF) is:

1

Answer 2

To find the Greatest Common Factor (GCF) of 54, 90, and 63, we need to first find the prime factorization of each number.

The prime factorization of 54 is 2 x 3 x 3 x 3 = 2 x 3^3.

The prime factorization of 90 is 2 x 3 x 3 x 5 = 2 x 3^2 x 5.

The prime factorization of 63 is 3 x 3 x 7 = 3^2 x 7.

To find the GCF, we look for the common factors in the prime factorizations, which are 3 squared or 9. Therefore, the GCF of 54, 90, and 63 is 9.