What is the Greatest Common Factor of 7872 and 7881?

Greatest common factor (GCF) of 7872 and 7881 is 3.

GCF(7872,7881) = 3

We will now calculate the prime factors of 7872 and 7881, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7872 and 7881.

How to find the GCF of 7872 and 7881?

We will first find the prime factorization of 7872 and 7881. After we will calculate the factors of 7872 and 7881 and find the biggest common factor number .

Step-1: Prime Factorization of 7872

Prime factors of 7872 are 2, 3, 41. Prime factorization of 7872 in exponential form is:

7872 = 2⁶ × 3¹ × 41¹

Step-2: Prime Factorization of 7881

Prime factors of 7881 are 3, 37, 71. Prime factorization of 7881 in exponential form is:

7881 = 3¹ × 37¹ × 71¹

Step-3: Factors of 7872

List of positive integer factors of 7872 that divides 7872 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 164, 192, 246, 328, 492, 656, 984, 1312, 1968, 2624, 3936

Step-4: Factors of 7881

List of positive integer factors of 7881 that divides 7872 without a remainder.

1, 3, 37, 71, 111, 213, 2627

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7872 and 7881. The biggest common factor number is the GCF number.
So the greatest common factor 7872 and 7881 is 3.

Also check out the Least Common Multiple of 7872 and 7881