What is the Greatest Common Factor of 7851 and 7863?

Greatest common factor (GCF) of 7851 and 7863 is 3.

GCF(7851,7863) = 3

We will now calculate the prime factors of 7851 and 7863, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7851 and 7863.

How to find the GCF of 7851 and 7863?

We will first find the prime factorization of 7851 and 7863. After we will calculate the factors of 7851 and 7863 and find the biggest common factor number .

Step-1: Prime Factorization of 7851

Prime factors of 7851 are 3, 2617. Prime factorization of 7851 in exponential form is:

7851 = 3¹ × 2617¹

Step-2: Prime Factorization of 7863

Prime factors of 7863 are 3, 2621. Prime factorization of 7863 in exponential form is:

7863 = 3¹ × 2621¹

Step-3: Factors of 7851

List of positive integer factors of 7851 that divides 7851 without a remainder.

1, 3, 2617

Step-4: Factors of 7863

List of positive integer factors of 7863 that divides 7851 without a remainder.

1, 3, 2621

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7851 and 7863. The biggest common factor number is the GCF number.
So the greatest common factor 7851 and 7863 is 3.

Also check out the Least Common Multiple of 7851 and 7863