What is the Greatest Common Factor of 7847 and 7855?

Greatest common factor (GCF) of 7847 and 7855 is 1.

GCF(7847,7855) = 1

We will now calculate the prime factors of 7847 and 7855, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7847 and 7855.

How to find the GCF of 7847 and 7855?

We will first find the prime factorization of 7847 and 7855. After we will calculate the factors of 7847 and 7855 and find the biggest common factor number .

Step-1: Prime Factorization of 7847

Prime factors of 7847 are 7, 19, 59. Prime factorization of 7847 in exponential form is:

7847 = 7¹ × 19¹ × 59¹

Step-2: Prime Factorization of 7855

Prime factors of 7855 are 5, 1571. Prime factorization of 7855 in exponential form is:

7855 = 5¹ × 1571¹

Step-3: Factors of 7847

List of positive integer factors of 7847 that divides 7847 without a remainder.

1, 7, 19, 59, 133, 413, 1121

Step-4: Factors of 7855

List of positive integer factors of 7855 that divides 7847 without a remainder.

1, 5, 1571

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7847 and 7855. The biggest common factor number is the GCF number.
So the greatest common factor 7847 and 7855 is 1.

Also check out the Least Common Multiple of 7847 and 7855