What is the Greatest Common Factor of 79140 and 79155?

Greatest common factor (GCF) of 79140 and 79155 is 15.

GCF(79140,79155) = 15

We will now calculate the prime factors of 79140 and 79155, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 79140 and 79155.

How to find the GCF of 79140 and 79155?

We will first find the prime factorization of 79140 and 79155. After we will calculate the factors of 79140 and 79155 and find the biggest common factor number .

Step-1: Prime Factorization of 79140

Prime factors of 79140 are 2, 3, 5, 1319. Prime factorization of 79140 in exponential form is:

79140 = 2² × 3¹ × 5¹ × 1319¹

Step-2: Prime Factorization of 79155

Prime factors of 79155 are 3, 5, 1759. Prime factorization of 79155 in exponential form is:

79155 = 3² × 5¹ × 1759¹

Step-3: Factors of 79140

List of positive integer factors of 79140 that divides 79140 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1319, 2638, 3957, 5276, 6595, 7914, 13190, 15828, 19785, 26380, 39570

Step-4: Factors of 79155

List of positive integer factors of 79155 that divides 79140 without a remainder.

1, 3, 5, 9, 15, 45, 1759, 5277, 8795, 15831, 26385

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 79140 and 79155. The biggest common factor number is the GCF number.
So the greatest common factor 79140 and 79155 is 15.

Also check out the Least Common Multiple of 79140 and 79155