What is the Greatest Common Factor of 18015 and 18021?

Greatest common factor (GCF) of 18015 and 18021 is 3.

GCF(18015,18021) = 3

We will now calculate the prime factors of 18015 and 18021, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18015 and 18021.

How to find the GCF of 18015 and 18021?

We will first find the prime factorization of 18015 and 18021. After we will calculate the factors of 18015 and 18021 and find the biggest common factor number .

Step-1: Prime Factorization of 18015

Prime factors of 18015 are 3, 5, 1201. Prime factorization of 18015 in exponential form is:

18015 = 3¹ × 5¹ × 1201¹

Step-2: Prime Factorization of 18021

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

18021 = 3¹ × 6007¹

Step-3: Factors of 18015

List of positive integer factors of 18015 that divides 18015 without a remainder.

1, 3, 5, 15, 1201, 3603, 6005

Step-4: Factors of 18021

List of positive integer factors of 18021 that divides 18015 without a remainder.

1, 3, 6007

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18015 and 18021. The biggest common factor number is the GCF number.
So the greatest common factor 18015 and 18021 is 3.

Also check out the Least Common Multiple of 18015 and 18021