What is the Greatest Common Factor of 31686 and 31690?

Greatest common factor (GCF) of 31686 and 31690 is 2.

GCF(31686,31690) = 2

We will now calculate the prime factors of 31686 and 31690, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31686 and 31690.

How to find the GCF of 31686 and 31690?

We will first find the prime factorization of 31686 and 31690. After we will calculate the factors of 31686 and 31690 and find the biggest common factor number .

Step-1: Prime Factorization of 31686

Prime factors of 31686 are 2, 3, 5281. Prime factorization of 31686 in exponential form is:

31686 = 2¹ × 3¹ × 5281¹

Step-2: Prime Factorization of 31690

Prime factors of 31690 are 2, 5, 3169. Prime factorization of 31690 in exponential form is:

31690 = 2¹ × 5¹ × 3169¹

Step-3: Factors of 31686

List of positive integer factors of 31686 that divides 31686 without a remainder.

1, 2, 3, 6, 5281, 10562, 15843

Step-4: Factors of 31690

List of positive integer factors of 31690 that divides 31686 without a remainder.

1, 2, 5, 10, 3169, 6338, 15845

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31686 and 31690. The biggest common factor number is the GCF number.
So the greatest common factor 31686 and 31690 is 2.

Also check out the Least Common Multiple of 31686 and 31690