What is the Greatest Common Factor of 31173 and 31191?

Greatest common factor (GCF) of 31173 and 31191 is 3.

GCF(31173,31191) = 3

We will now calculate the prime factors of 31173 and 31191, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31173 and 31191.

How to find the GCF of 31173 and 31191?

We will first find the prime factorization of 31173 and 31191. After we will calculate the factors of 31173 and 31191 and find the biggest common factor number .

Step-1: Prime Factorization of 31173

Prime factors of 31173 are 3, 10391. Prime factorization of 31173 in exponential form is:

31173 = 3¹ × 10391¹

Step-2: Prime Factorization of 31191

Prime factors of 31191 are 3, 37, 281. Prime factorization of 31191 in exponential form is:

31191 = 3¹ × 37¹ × 281¹

Step-3: Factors of 31173

List of positive integer factors of 31173 that divides 31173 without a remainder.

1, 3, 10391

Step-4: Factors of 31191

List of positive integer factors of 31191 that divides 31173 without a remainder.

1, 3, 37, 111, 281, 843, 10397

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31173 and 31191. The biggest common factor number is the GCF number.
So the greatest common factor 31173 and 31191 is 3.

Also check out the Least Common Multiple of 31173 and 31191