What is the greatest common factor of 180 450 and 420?

Answer 1

140 = 2 * 2 * 5 * 7

180 = 2 * 2 * 3 * 3 * 5

Greatest common factor: 2 * 2 * 5 = 20

Answer 2

To find the greatest common factor (GCF) of 180, 450, and 420, we first need to find the prime factorization of each number. The prime factorization of 180 is 2^2 x 3^2 x 5, the prime factorization of 450 is 2 x 3^2 x 5^2, and the prime factorization of 420 is 2^2 x 3 x 5 x 7. The GCF is the product of the common prime factors raised to the lowest power, which in this case is 2^2 x 3 = 12. Therefore, the greatest common factor of 180, 450, and 420 is 12.

Answer 3

The GCF of 180 and 420 is 60.

Answer 4

The Greatest Common Factor (GCF) is: 210

Answer 5

The GCF is 30.

Answer 6

90