What is the Greatest Common Factor of 31638 and 31646?

Greatest common factor (GCF) of 31638 and 31646 is 2.

GCF(31638,31646) = 2

We will now calculate the prime factors of 31638 and 31646, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31638 and 31646.

How to find the GCF of 31638 and 31646?

We will first find the prime factorization of 31638 and 31646. After we will calculate the factors of 31638 and 31646 and find the biggest common factor number .

Step-1: Prime Factorization of 31638

Prime factors of 31638 are 2, 3, 5273. Prime factorization of 31638 in exponential form is:

31638 = 2¹ × 3¹ × 5273¹

Step-2: Prime Factorization of 31646

Prime factors of 31646 are 2, 15823. Prime factorization of 31646 in exponential form is:

31646 = 2¹ × 15823¹

Step-3: Factors of 31638

List of positive integer factors of 31638 that divides 31638 without a remainder.

1, 2, 3, 6, 5273, 10546, 15819

Step-4: Factors of 31646

List of positive integer factors of 31646 that divides 31638 without a remainder.

1, 2, 15823

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31638 and 31646. The biggest common factor number is the GCF number.
So the greatest common factor 31638 and 31646 is 2.

Also check out the Least Common Multiple of 31638 and 31646