What is the Greatest Common Factor of 15804 and 15822?

Greatest common factor (GCF) of 15804 and 15822 is 18.

GCF(15804,15822) = 18

We will now calculate the prime factors of 15804 and 15822, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15804 and 15822.

How to find the GCF of 15804 and 15822?

We will first find the prime factorization of 15804 and 15822. After we will calculate the factors of 15804 and 15822 and find the biggest common factor number .

Step-1: Prime Factorization of 15804

Prime factors of 15804 are 2, 3, 439. Prime factorization of 15804 in exponential form is:

15804 = 2² × 3² × 439¹

Step-2: Prime Factorization of 15822

Prime factors of 15822 are 2, 3, 293. Prime factorization of 15822 in exponential form is:

15822 = 2¹ × 3³ × 293¹

Step-3: Factors of 15804

List of positive integer factors of 15804 that divides 15804 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 439, 878, 1317, 1756, 2634, 3951, 5268, 7902

Step-4: Factors of 15822

List of positive integer factors of 15822 that divides 15804 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 293, 586, 879, 1758, 2637, 5274, 7911

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15804 and 15822. The biggest common factor number is the GCF number.
So the greatest common factor 15804 and 15822 is 18.

Also check out the Least Common Multiple of 15804 and 15822