What is the Greatest Common Factor of 7851 and 7870?

Greatest common factor (GCF) of 7851 and 7870 is 1.

GCF(7851,7870) = 1

We will now calculate the prime factors of 7851 and 7870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7851 and 7870.

How to find the GCF of 7851 and 7870?

We will first find the prime factorization of 7851 and 7870. After we will calculate the factors of 7851 and 7870 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 7870

Prime factors of 7870 are 2, 5, 787. Prime factorization of 7870 in exponential form is:

7870 = 2¹ × 5¹ × 787¹

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 7870

List of positive integer factors of 7870 that divides 7851 without a remainder.

1, 2, 5, 10, 787, 1574, 3935

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7851 and 7870. The biggest common factor number is the GCF number.
So the greatest common factor 7851 and 7870 is 1.

Also check out the Least Common Multiple of 7851 and 7870