What is the Greatest Common Factor of 1156 and 1172?

Greatest common factor (GCF) of 1156 and 1172 is 4.

GCF(1156,1172) = 4

We will now calculate the prime factors of 1156 and 1172, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1156 and 1172.

How to find the GCF of 1156 and 1172?

We will first find the prime factorization of 1156 and 1172. After we will calculate the factors of 1156 and 1172 and find the biggest common factor number .

Step-1: Prime Factorization of 1156

Prime factors of 1156 are 2, 17. Prime factorization of 1156 in exponential form is:

1156 = 2² × 17²

Step-2: Prime Factorization of 1172

Prime factors of 1172 are 2, 293. Prime factorization of 1172 in exponential form is:

1172 = 2² × 293¹

Step-3: Factors of 1156

List of positive integer factors of 1156 that divides 1156 without a remainder.

1, 2, 4, 17, 34, 68, 289, 578

Step-4: Factors of 1172

List of positive integer factors of 1172 that divides 1156 without a remainder.

1, 2, 4, 293, 586

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1156 and 1172. The biggest common factor number is the GCF number.
So the greatest common factor 1156 and 1172 is 4.

Also check out the Least Common Multiple of 1156 and 1172