What is the Greatest Common Factor of 3115 and 3129?

Greatest common factor (GCF) of 3115 and 3129 is 7.

GCF(3115,3129) = 7

We will now calculate the prime factors of 3115 and 3129, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3115 and 3129.

How to find the GCF of 3115 and 3129?

We will first find the prime factorization of 3115 and 3129. After we will calculate the factors of 3115 and 3129 and find the biggest common factor number .

Step-1: Prime Factorization of 3115

Prime factors of 3115 are 5, 7, 89. Prime factorization of 3115 in exponential form is:

3115 = 5¹ × 7¹ × 89¹

Step-2: Prime Factorization of 3129

Prime factors of 3129 are 3, 7, 149. Prime factorization of 3129 in exponential form is:

3129 = 3¹ × 7¹ × 149¹

Step-3: Factors of 3115

List of positive integer factors of 3115 that divides 3115 without a remainder.

1, 5, 7, 35, 89, 445, 623

Step-4: Factors of 3129

List of positive integer factors of 3129 that divides 3115 without a remainder.

1, 3, 7, 21, 149, 447, 1043

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3115 and 3129. The biggest common factor number is the GCF number.
So the greatest common factor 3115 and 3129 is 7.

Also check out the Least Common Multiple of 3115 and 3129