What is the Greatest Common Factor of 13797 and 13809?

Greatest common factor (GCF) of 13797 and 13809 is 3.

GCF(13797,13809) = 3

We will now calculate the prime factors of 13797 and 13809, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13797 and 13809.

How to find the GCF of 13797 and 13809?

We will first find the prime factorization of 13797 and 13809. After we will calculate the factors of 13797 and 13809 and find the biggest common factor number .

Step-1: Prime Factorization of 13797

Prime factors of 13797 are 3, 7, 73. Prime factorization of 13797 in exponential form is:

13797 = 3³ × 7¹ × 73¹

Step-2: Prime Factorization of 13809

Prime factors of 13809 are 3, 4603. Prime factorization of 13809 in exponential form is:

13809 = 3¹ × 4603¹

Step-3: Factors of 13797

List of positive integer factors of 13797 that divides 13797 without a remainder.

1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 4599

Step-4: Factors of 13809

List of positive integer factors of 13809 that divides 13797 without a remainder.

1, 3, 4603

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13797 and 13809. The biggest common factor number is the GCF number.
So the greatest common factor 13797 and 13809 is 3.

Also check out the Least Common Multiple of 13797 and 13809