What is the Greatest Common Factor of 13785 and 13791?

Greatest common factor (GCF) of 13785 and 13791 is 3.

GCF(13785,13791) = 3

We will now calculate the prime factors of 13785 and 13791, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13785 and 13791.

How to find the GCF of 13785 and 13791?

We will first find the prime factorization of 13785 and 13791. After we will calculate the factors of 13785 and 13791 and find the biggest common factor number .

Step-1: Prime Factorization of 13785

Prime factors of 13785 are 3, 5, 919. Prime factorization of 13785 in exponential form is:

13785 = 3¹ × 5¹ × 919¹

Step-2: Prime Factorization of 13791

Prime factors of 13791 are 3, 4597. Prime factorization of 13791 in exponential form is:

13791 = 3¹ × 4597¹

Step-3: Factors of 13785

List of positive integer factors of 13785 that divides 13785 without a remainder.

1, 3, 5, 15, 919, 2757, 4595

Step-4: Factors of 13791

List of positive integer factors of 13791 that divides 13785 without a remainder.

1, 3, 4597

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13785 and 13791. The biggest common factor number is the GCF number.
So the greatest common factor 13785 and 13791 is 3.

Also check out the Least Common Multiple of 13785 and 13791