What is the Greatest Common Factor of 39915 and 39931?

Greatest common factor (GCF) of 39915 and 39931 is 1.

GCF(39915,39931) = 1

We will now calculate the prime factors of 39915 and 39931, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39915 and 39931.

How to find the GCF of 39915 and 39931?

We will first find the prime factorization of 39915 and 39931. After we will calculate the factors of 39915 and 39931 and find the biggest common factor number .

Step-1: Prime Factorization of 39915

Prime factors of 39915 are 3, 5, 887. Prime factorization of 39915 in exponential form is:

39915 = 3² × 5¹ × 887¹

Step-2: Prime Factorization of 39931

Prime factors of 39931 are 73, 547. Prime factorization of 39931 in exponential form is:

39931 = 73¹ × 547¹

Step-3: Factors of 39915

List of positive integer factors of 39915 that divides 39915 without a remainder.

1, 3, 5, 9, 15, 45, 887, 2661, 4435, 7983, 13305

Step-4: Factors of 39931

List of positive integer factors of 39931 that divides 39915 without a remainder.

1, 73, 547

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39915 and 39931. The biggest common factor number is the GCF number.
So the greatest common factor 39915 and 39931 is 1.

Also check out the Least Common Multiple of 39915 and 39931