What is the Greatest Common Factor of 13809 and 13825?

Greatest common factor (GCF) of 13809 and 13825 is 1.

GCF(13809,13825) = 1

We will now calculate the prime factors of 13809 and 13825, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13809 and 13825.

How to find the GCF of 13809 and 13825?

We will first find the prime factorization of 13809 and 13825. After we will calculate the factors of 13809 and 13825 and find the biggest common factor number .

Step-1: Prime Factorization of 13809

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

13809 = 3¹ × 4603¹

Step-2: Prime Factorization of 13825

Prime factors of 13825 are 5, 7, 79. Prime factorization of 13825 in exponential form is:

13825 = 5² × 7¹ × 79¹

Step-3: Factors of 13809

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

1, 3, 4603

Step-4: Factors of 13825

List of positive integer factors of 13825 that divides 13809 without a remainder.

1, 5, 7, 25, 35, 79, 175, 395, 553, 1975, 2765

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13809 and 13825. The biggest common factor number is the GCF number.
So the greatest common factor 13809 and 13825 is 1.

Also check out the Least Common Multiple of 13809 and 13825