What is the Greatest Common Factor of 115 and 124?

Greatest common factor (GCF) of 115 and 124 is 1.

GCF(115,124) = 1

We will now calculate the prime factors of 115 and 124, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 115 and 124.

How to find the GCF of 115 and 124?

We will first find the prime factorization of 115 and 124. After we will calculate the factors of 115 and 124 and find the biggest common factor number .

Step-1: Prime Factorization of 115

Prime factors of 115 are 5, 23. Prime factorization of 115 in exponential form is:

115 = 5¹ × 23¹

Step-2: Prime Factorization of 124

Prime factors of 124 are 2, 31. Prime factorization of 124 in exponential form is:

124 = 2² × 31¹

Step-3: Factors of 115

List of positive integer factors of 115 that divides 115 without a remainder.

1, 5, 23

Step-4: Factors of 124

List of positive integer factors of 124 that divides 115 without a remainder.

1, 2, 4, 31, 62

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 115 and 124. The biggest common factor number is the GCF number.
So the greatest common factor 115 and 124 is 1.

Also check out the Least Common Multiple of 115 and 124