What is the Greatest Common Factor of 456 and 475?

Greatest common factor (GCF) of 456 and 475 is 19.

GCF(456,475) = 19

We will now calculate the prime factors of 456 and 475, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 456 and 475.

How to find the GCF of 456 and 475?

We will first find the prime factorization of 456 and 475. After we will calculate the factors of 456 and 475 and find the biggest common factor number .

Step-1: Prime Factorization of 456

Prime factors of 456 are 2, 3, 19. Prime factorization of 456 in exponential form is:

456 = 2³ × 3¹ × 19¹

Step-2: Prime Factorization of 475

Prime factors of 475 are 5, 19. Prime factorization of 475 in exponential form is:

475 = 5² × 19¹

Step-3: Factors of 456

List of positive integer factors of 456 that divides 456 without a remainder.

1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228

Step-4: Factors of 475

List of positive integer factors of 475 that divides 456 without a remainder.

1, 5, 19, 25, 95

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 456 and 475. The biggest common factor number is the GCF number.
So the greatest common factor 456 and 475 is 19.

Also check out the Least Common Multiple of 456 and 475