What is the Greatest Common Factor of 84621 and 84639?

Greatest common factor (GCF) of 84621 and 84639 is 3.

GCF(84621,84639) = 3

We will now calculate the prime factors of 84621 and 84639, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 84621 and 84639.

How to find the GCF of 84621 and 84639?

We will first find the prime factorization of 84621 and 84639. After we will calculate the factors of 84621 and 84639 and find the biggest common factor number .

Step-1: Prime Factorization of 84621

Prime factors of 84621 are 3, 67, 421. Prime factorization of 84621 in exponential form is:

84621 = 3¹ × 67¹ × 421¹

Step-2: Prime Factorization of 84639

Prime factors of 84639 are 3, 89, 317. Prime factorization of 84639 in exponential form is:

84639 = 3¹ × 89¹ × 317¹

Step-3: Factors of 84621

List of positive integer factors of 84621 that divides 84621 without a remainder.

1, 3, 67, 201, 421, 1263, 28207

Step-4: Factors of 84639

List of positive integer factors of 84639 that divides 84621 without a remainder.

1, 3, 89, 267, 317, 951, 28213

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 84621 and 84639. The biggest common factor number is the GCF number.
So the greatest common factor 84621 and 84639 is 3.

Also check out the Least Common Multiple of 84621 and 84639