What is the Greatest Common Factor of 18021 and 18027?

Greatest common factor (GCF) of 18021 and 18027 is 3.

GCF(18021,18027) = 3

We will now calculate the prime factors of 18021 and 18027, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18021 and 18027.

How to find the GCF of 18021 and 18027?

We will first find the prime factorization of 18021 and 18027. After we will calculate the factors of 18021 and 18027 and find the biggest common factor number .

Step-1: Prime Factorization of 18021

Prime factors of 18021 are 3, 6007. Prime factorization of 18021 in exponential form is:

18021 = 3¹ × 6007¹

Step-2: Prime Factorization of 18027

Prime factors of 18027 are 3, 2003. Prime factorization of 18027 in exponential form is:

18027 = 3² × 2003¹

Step-3: Factors of 18021

List of positive integer factors of 18021 that divides 18021 without a remainder.

1, 3, 6007

Step-4: Factors of 18027

List of positive integer factors of 18027 that divides 18021 without a remainder.

1, 3, 9, 2003, 6009

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18021 and 18027. The biggest common factor number is the GCF number.
So the greatest common factor 18021 and 18027 is 3.

Also check out the Least Common Multiple of 18021 and 18027