What is the Greatest Common Factor of 18381 and 18396?

Greatest common factor (GCF) of 18381 and 18396 is 3.

GCF(18381,18396) = 3

We will now calculate the prime factors of 18381 and 18396, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18381 and 18396.

How to find the GCF of 18381 and 18396?

We will first find the prime factorization of 18381 and 18396. After we will calculate the factors of 18381 and 18396 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 18396

Prime factors of 18396 are 2, 3, 7, 73. Prime factorization of 18396 in exponential form is:

18396 = 2² × 3² × 7¹ × 73¹

Step-3: Factors of 18381

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

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

Step-4: Factors of 18396

List of positive integer factors of 18396 that divides 18381 without a remainder.

1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 73, 84, 126, 146, 219, 252, 292, 438, 511, 657, 876, 1022, 1314, 1533, 2044, 2628, 3066, 4599, 6132, 9198

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18381 and 18396. The biggest common factor number is the GCF number.
So the greatest common factor 18381 and 18396 is 3.

Also check out the Least Common Multiple of 18381 and 18396