What is the Greatest Common Factor of 456 and 470?

Greatest common factor (GCF) of 456 and 470 is 2.

GCF(456,470) = 2

We will now calculate the prime factors of 456 and 470, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 456 and 470.

How to find the GCF of 456 and 470?

We will first find the prime factorization of 456 and 470. After we will calculate the factors of 456 and 470 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 470

Prime factors of 470 are 2, 5, 47. Prime factorization of 470 in exponential form is:

470 = 2¹ × 5¹ × 47¹

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 470

List of positive integer factors of 470 that divides 456 without a remainder.

1, 2, 5, 10, 47, 94, 235

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 456 and 470. The biggest common factor number is the GCF number.
So the greatest common factor 456 and 470 is 2.

Also check out the Least Common Multiple of 456 and 470