What is the Greatest Common Factor of 16383 and 16389?

Greatest common factor (GCF) of 16383 and 16389 is 3.

GCF(16383,16389) = 3

We will now calculate the prime factors of 16383 and 16389, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16383 and 16389.

How to find the GCF of 16383 and 16389?

We will first find the prime factorization of 16383 and 16389. After we will calculate the factors of 16383 and 16389 and find the biggest common factor number .

Step-1: Prime Factorization of 16383

Prime factors of 16383 are 3, 43, 127. Prime factorization of 16383 in exponential form is:

16383 = 3¹ × 43¹ × 127¹

Step-2: Prime Factorization of 16389

Prime factors of 16389 are 3, 607. Prime factorization of 16389 in exponential form is:

16389 = 3³ × 607¹

Step-3: Factors of 16383

List of positive integer factors of 16383 that divides 16383 without a remainder.

1, 3, 43, 127, 129, 381, 5461

Step-4: Factors of 16389

List of positive integer factors of 16389 that divides 16383 without a remainder.

1, 3, 9, 27, 607, 1821, 5463

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16383 and 16389. The biggest common factor number is the GCF number.
So the greatest common factor 16383 and 16389 is 3.

Also check out the Least Common Multiple of 16383 and 16389