What is the Greatest Common Factor of 82420 and 82428?

Greatest common factor (GCF) of 82420 and 82428 is 4.

GCF(82420,82428) = 4

We will now calculate the prime factors of 82420 and 82428, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 82420 and 82428.

How to find the GCF of 82420 and 82428?

We will first find the prime factorization of 82420 and 82428. After we will calculate the factors of 82420 and 82428 and find the biggest common factor number .

Step-1: Prime Factorization of 82420

Prime factors of 82420 are 2, 5, 13, 317. Prime factorization of 82420 in exponential form is:

82420 = 2² × 5¹ × 13¹ × 317¹

Step-2: Prime Factorization of 82428

Prime factors of 82428 are 2, 3, 6869. Prime factorization of 82428 in exponential form is:

82428 = 2² × 3¹ × 6869¹

Step-3: Factors of 82420

List of positive integer factors of 82420 that divides 82420 without a remainder.

1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 634, 1268, 1585, 3170, 4121, 6340, 8242, 16484, 20605, 41210

Step-4: Factors of 82428

List of positive integer factors of 82428 that divides 82420 without a remainder.

1, 2, 3, 4, 6, 12, 6869, 13738, 20607, 27476, 41214

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 82420 and 82428. The biggest common factor number is the GCF number.
So the greatest common factor 82420 and 82428 is 4.

Also check out the Least Common Multiple of 82420 and 82428