What is the Greatest Common Factor of 18009 and 18028?

Greatest common factor (GCF) of 18009 and 18028 is 1.

GCF(18009,18028) = 1

We will now calculate the prime factors of 18009 and 18028, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18009 and 18028.

How to find the GCF of 18009 and 18028?

We will first find the prime factorization of 18009 and 18028. After we will calculate the factors of 18009 and 18028 and find the biggest common factor number .

Step-1: Prime Factorization of 18009

Prime factors of 18009 are 3, 23, 29. Prime factorization of 18009 in exponential form is:

18009 = 3³ × 23¹ × 29¹

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 18009

List of positive integer factors of 18009 that divides 18009 without a remainder.

1, 3, 9, 23, 27, 29, 69, 87, 207, 261, 621, 667, 783, 2001, 6003

Step-4: Factors of 18028

List of positive integer factors of 18028 that divides 18009 without a remainder.

1, 2, 4, 4507, 9014

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18009 and 18028. The biggest common factor number is the GCF number.
So the greatest common factor 18009 and 18028 is 1.

Also check out the Least Common Multiple of 18009 and 18028