What is the Greatest Common Factor of 15915 and 15931?

Greatest common factor (GCF) of 15915 and 15931 is 1.

GCF(15915,15931) = 1

We will now calculate the prime factors of 15915 and 15931, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15915 and 15931.

How to find the GCF of 15915 and 15931?

We will first find the prime factorization of 15915 and 15931. After we will calculate the factors of 15915 and 15931 and find the biggest common factor number .

Step-1: Prime Factorization of 15915

Prime factors of 15915 are 3, 5, 1061. Prime factorization of 15915 in exponential form is:

15915 = 3¹ × 5¹ × 1061¹

Step-2: Prime Factorization of 15931

Prime factors of 15931 are 89, 179. Prime factorization of 15931 in exponential form is:

15931 = 89¹ × 179¹

Step-3: Factors of 15915

List of positive integer factors of 15915 that divides 15915 without a remainder.

1, 3, 5, 15, 1061, 3183, 5305

Step-4: Factors of 15931

List of positive integer factors of 15931 that divides 15915 without a remainder.

1, 89, 179

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15915 and 15931. The biggest common factor number is the GCF number.
So the greatest common factor 15915 and 15931 is 1.

Also check out the Least Common Multiple of 15915 and 15931