What is the Greatest Common Factor of 27921 and 27939?

Greatest common factor (GCF) of 27921 and 27939 is 3.

GCF(27921,27939) = 3

We will now calculate the prime factors of 27921 and 27939, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27921 and 27939.

How to find the GCF of 27921 and 27939?

We will first find the prime factorization of 27921 and 27939. After we will calculate the factors of 27921 and 27939 and find the biggest common factor number .

Step-1: Prime Factorization of 27921

Prime factors of 27921 are 3, 41, 227. Prime factorization of 27921 in exponential form is:

27921 = 3¹ × 41¹ × 227¹

Step-2: Prime Factorization of 27939

Prime factors of 27939 are 3, 67, 139. Prime factorization of 27939 in exponential form is:

27939 = 3¹ × 67¹ × 139¹

Step-3: Factors of 27921

List of positive integer factors of 27921 that divides 27921 without a remainder.

1, 3, 41, 123, 227, 681, 9307

Step-4: Factors of 27939

List of positive integer factors of 27939 that divides 27921 without a remainder.

1, 3, 67, 139, 201, 417, 9313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27921 and 27939. The biggest common factor number is the GCF number.
So the greatest common factor 27921 and 27939 is 3.

Also check out the Least Common Multiple of 27921 and 27939