What is the Greatest Common Factor of 20913 and 20931?

Greatest common factor (GCF) of 20913 and 20931 is 3.

GCF(20913,20931) = 3

We will now calculate the prime factors of 20913 and 20931, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20913 and 20931.

How to find the GCF of 20913 and 20931?

We will first find the prime factorization of 20913 and 20931. After we will calculate the factors of 20913 and 20931 and find the biggest common factor number .

Step-1: Prime Factorization of 20913

Prime factors of 20913 are 3, 6971. Prime factorization of 20913 in exponential form is:

20913 = 3¹ × 6971¹

Step-2: Prime Factorization of 20931

Prime factors of 20931 are 3, 6977. Prime factorization of 20931 in exponential form is:

20931 = 3¹ × 6977¹

Step-3: Factors of 20913

List of positive integer factors of 20913 that divides 20913 without a remainder.

1, 3, 6971

Step-4: Factors of 20931

List of positive integer factors of 20931 that divides 20913 without a remainder.

1, 3, 6977

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20913 and 20931. The biggest common factor number is the GCF number.
So the greatest common factor 20913 and 20931 is 3.

Also check out the Least Common Multiple of 20913 and 20931