What is the Greatest Common Factor of 18020 and 18028?

Greatest common factor (GCF) of 18020 and 18028 is 4.

GCF(18020,18028) = 4

We will now calculate the prime factors of 18020 and 18028, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18020 and 18028.

How to find the GCF of 18020 and 18028?

We will first find the prime factorization of 18020 and 18028. After we will calculate the factors of 18020 and 18028 and find the biggest common factor number .

Step-1: Prime Factorization of 18020

Prime factors of 18020 are 2, 5, 17, 53. Prime factorization of 18020 in exponential form is:

18020 = 2² × 5¹ × 17¹ × 53¹

Step-2: Prime Factorization of 18028

Prime factors of 18028 are 2, 4507. Prime factorization of 18028 in exponential form is:

18028 = 2² × 4507¹

Step-3: Factors of 18020

List of positive integer factors of 18020 that divides 18020 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1060, 1802, 3604, 4505, 9010

Step-4: Factors of 18028

List of positive integer factors of 18028 that divides 18020 without a remainder.

1, 2, 4, 4507, 9014

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18020 and 18028. The biggest common factor number is the GCF number.
So the greatest common factor 18020 and 18028 is 4.

Also check out the Least Common Multiple of 18020 and 18028