What is the Greatest Common Factor of 28008 and 28020?

Greatest common factor (GCF) of 28008 and 28020 is 12.

GCF(28008,28020) = 12

We will now calculate the prime factors of 28008 and 28020, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28008 and 28020.

How to find the GCF of 28008 and 28020?

We will first find the prime factorization of 28008 and 28020. After we will calculate the factors of 28008 and 28020 and find the biggest common factor number .

Step-1: Prime Factorization of 28008

Prime factors of 28008 are 2, 3, 389. Prime factorization of 28008 in exponential form is:

28008 = 2³ × 3² × 389¹

Step-2: Prime Factorization of 28020

Prime factors of 28020 are 2, 3, 5, 467. Prime factorization of 28020 in exponential form is:

28020 = 2² × 3¹ × 5¹ × 467¹

Step-3: Factors of 28008

List of positive integer factors of 28008 that divides 28008 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 389, 778, 1167, 1556, 2334, 3112, 3501, 4668, 7002, 9336, 14004

Step-4: Factors of 28020

List of positive integer factors of 28020 that divides 28008 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 467, 934, 1401, 1868, 2335, 2802, 4670, 5604, 7005, 9340, 14010

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28008 and 28020. The biggest common factor number is the GCF number.
So the greatest common factor 28008 and 28020 is 12.

Also check out the Least Common Multiple of 28008 and 28020