What is the Greatest Common Factor of 31646 and 31666?

Greatest common factor (GCF) of 31646 and 31666 is 2.

GCF(31646,31666) = 2

We will now calculate the prime factors of 31646 and 31666, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31646 and 31666.

How to find the GCF of 31646 and 31666?

We will first find the prime factorization of 31646 and 31666. After we will calculate the factors of 31646 and 31666 and find the biggest common factor number .

Step-1: Prime Factorization of 31646

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

31646 = 2¹ × 15823¹

Step-2: Prime Factorization of 31666

Prime factors of 31666 are 2, 71, 223. Prime factorization of 31666 in exponential form is:

31666 = 2¹ × 71¹ × 223¹

Step-3: Factors of 31646

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

1, 2, 15823

Step-4: Factors of 31666

List of positive integer factors of 31666 that divides 31646 without a remainder.

1, 2, 71, 142, 223, 446, 15833

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31646 and 31666. The biggest common factor number is the GCF number.
So the greatest common factor 31646 and 31666 is 2.

Also check out the Least Common Multiple of 31646 and 31666