What is the Greatest Common Factor of 16221 and 16239?

Greatest common factor (GCF) of 16221 and 16239 is 3.

GCF(16221,16239) = 3

We will now calculate the prime factors of 16221 and 16239, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16221 and 16239.

How to find the GCF of 16221 and 16239?

We will first find the prime factorization of 16221 and 16239. After we will calculate the factors of 16221 and 16239 and find the biggest common factor number .

Step-1: Prime Factorization of 16221

Prime factors of 16221 are 3, 5407. Prime factorization of 16221 in exponential form is:

16221 = 3¹ × 5407¹

Step-2: Prime Factorization of 16239

Prime factors of 16239 are 3, 5413. Prime factorization of 16239 in exponential form is:

16239 = 3¹ × 5413¹

Step-3: Factors of 16221

List of positive integer factors of 16221 that divides 16221 without a remainder.

1, 3, 5407

Step-4: Factors of 16239

List of positive integer factors of 16239 that divides 16221 without a remainder.

1, 3, 5413

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16221 and 16239. The biggest common factor number is the GCF number.
So the greatest common factor 16221 and 16239 is 3.

Also check out the Least Common Multiple of 16221 and 16239