What is the Greatest Common Factor of 4791 and 4809?

Greatest common factor (GCF) of 4791 and 4809 is 3.

GCF(4791,4809) = 3

We will now calculate the prime factors of 4791 and 4809, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4791 and 4809.

How to find the GCF of 4791 and 4809?

We will first find the prime factorization of 4791 and 4809. After we will calculate the factors of 4791 and 4809 and find the biggest common factor number .

Step-1: Prime Factorization of 4791

Prime factors of 4791 are 3, 1597. Prime factorization of 4791 in exponential form is:

4791 = 3¹ × 1597¹

Step-2: Prime Factorization of 4809

Prime factors of 4809 are 3, 7, 229. Prime factorization of 4809 in exponential form is:

4809 = 3¹ × 7¹ × 229¹

Step-3: Factors of 4791

List of positive integer factors of 4791 that divides 4791 without a remainder.

1, 3, 1597

Step-4: Factors of 4809

List of positive integer factors of 4809 that divides 4791 without a remainder.

1, 3, 7, 21, 229, 687, 1603

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4791 and 4809. The biggest common factor number is the GCF number.
So the greatest common factor 4791 and 4809 is 3.

Also check out the Least Common Multiple of 4791 and 4809