What is the Greatest Common Factor of 7880 and 7891?

Greatest common factor (GCF) of 7880 and 7891 is 1.

GCF(7880,7891) = 1

We will now calculate the prime factors of 7880 and 7891, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7880 and 7891.

How to find the GCF of 7880 and 7891?

We will first find the prime factorization of 7880 and 7891. After we will calculate the factors of 7880 and 7891 and find the biggest common factor number .

Step-1: Prime Factorization of 7880

Prime factors of 7880 are 2, 5, 197. Prime factorization of 7880 in exponential form is:

7880 = 2³ × 5¹ × 197¹

Step-2: Prime Factorization of 7891

Prime factors of 7891 are 13, 607. Prime factorization of 7891 in exponential form is:

7891 = 13¹ × 607¹

Step-3: Factors of 7880

List of positive integer factors of 7880 that divides 7880 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940

Step-4: Factors of 7891

List of positive integer factors of 7891 that divides 7880 without a remainder.

1, 13, 607

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7880 and 7891. The biggest common factor number is the GCF number.
So the greatest common factor 7880 and 7891 is 1.

Also check out the Least Common Multiple of 7880 and 7891