What is the Greatest Common Factor of 18375 and 18381?

Greatest common factor (GCF) of 18375 and 18381 is 3.

GCF(18375,18381) = 3

We will now calculate the prime factors of 18375 and 18381, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18375 and 18381.

How to find the GCF of 18375 and 18381?

We will first find the prime factorization of 18375 and 18381. After we will calculate the factors of 18375 and 18381 and find the biggest common factor number .

Step-1: Prime Factorization of 18375

Prime factors of 18375 are 3, 5, 7. Prime factorization of 18375 in exponential form is:

18375 = 3¹ × 5³ × 7²

Step-2: Prime Factorization of 18381

Prime factors of 18381 are 3, 11, 557. Prime factorization of 18381 in exponential form is:

18381 = 3¹ × 11¹ × 557¹

Step-3: Factors of 18375

List of positive integer factors of 18375 that divides 18375 without a remainder.

1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 125, 147, 175, 245, 375, 525, 735, 875, 1225, 2625, 3675, 6125

Step-4: Factors of 18381

List of positive integer factors of 18381 that divides 18375 without a remainder.

1, 3, 11, 33, 557, 1671, 6127

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18375 and 18381. The biggest common factor number is the GCF number.
So the greatest common factor 18375 and 18381 is 3.

Also check out the Least Common Multiple of 18375 and 18381