What is the Greatest Common Factor of 18129 and 18138?

Greatest common factor (GCF) of 18129 and 18138 is 3.

GCF(18129,18138) = 3

We will now calculate the prime factors of 18129 and 18138, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18129 and 18138.

How to find the GCF of 18129 and 18138?

We will first find the prime factorization of 18129 and 18138. After we will calculate the factors of 18129 and 18138 and find the biggest common factor number .

Step-1: Prime Factorization of 18129

Prime factors of 18129 are 3, 6043. Prime factorization of 18129 in exponential form is:

18129 = 3¹ × 6043¹

Step-2: Prime Factorization of 18138

Prime factors of 18138 are 2, 3, 3023. Prime factorization of 18138 in exponential form is:

18138 = 2¹ × 3¹ × 3023¹

Step-3: Factors of 18129

List of positive integer factors of 18129 that divides 18129 without a remainder.

1, 3, 6043

Step-4: Factors of 18138

List of positive integer factors of 18138 that divides 18129 without a remainder.

1, 2, 3, 6, 3023, 6046, 9069

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18129 and 18138. The biggest common factor number is the GCF number.
So the greatest common factor 18129 and 18138 is 3.

Also check out the Least Common Multiple of 18129 and 18138