What is the Greatest Common Factor of 1256 and 1264?

Greatest common factor (GCF) of 1256 and 1264 is 8.

GCF(1256,1264) = 8

We will now calculate the prime factors of 1256 and 1264, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1256 and 1264.

How to find the GCF of 1256 and 1264?

We will first find the prime factorization of 1256 and 1264. After we will calculate the factors of 1256 and 1264 and find the biggest common factor number .

Step-1: Prime Factorization of 1256

Prime factors of 1256 are 2, 157. Prime factorization of 1256 in exponential form is:

1256 = 2³ × 157¹

Step-2: Prime Factorization of 1264

Prime factors of 1264 are 2, 79. Prime factorization of 1264 in exponential form is:

1264 = 2⁴ × 79¹

Step-3: Factors of 1256

List of positive integer factors of 1256 that divides 1256 without a remainder.

1, 2, 4, 8, 157, 314, 628

Step-4: Factors of 1264

List of positive integer factors of 1264 that divides 1256 without a remainder.

1, 2, 4, 8, 16, 79, 158, 316, 632

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1256 and 1264. The biggest common factor number is the GCF number.
So the greatest common factor 1256 and 1264 is 8.

Also check out the Least Common Multiple of 1256 and 1264