What is the Greatest Common Factor of 8156 and 8172?

Greatest common factor (GCF) of 8156 and 8172 is 4.

GCF(8156,8172) = 4

We will now calculate the prime factors of 8156 and 8172, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8156 and 8172.

How to find the GCF of 8156 and 8172?

We will first find the prime factorization of 8156 and 8172. After we will calculate the factors of 8156 and 8172 and find the biggest common factor number .

Step-1: Prime Factorization of 8156

Prime factors of 8156 are 2, 2039. Prime factorization of 8156 in exponential form is:

8156 = 2² × 2039¹

Step-2: Prime Factorization of 8172

Prime factors of 8172 are 2, 3, 227. Prime factorization of 8172 in exponential form is:

8172 = 2² × 3² × 227¹

Step-3: Factors of 8156

List of positive integer factors of 8156 that divides 8156 without a remainder.

1, 2, 4, 2039, 4078

Step-4: Factors of 8172

List of positive integer factors of 8172 that divides 8156 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 227, 454, 681, 908, 1362, 2043, 2724, 4086

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8156 and 8172. The biggest common factor number is the GCF number.
So the greatest common factor 8156 and 8172 is 4.

Also check out the Least Common Multiple of 8156 and 8172