What is the Greatest Common Factor of 78845 and 78857?

Greatest common factor (GCF) of 78845 and 78857 is 1.

GCF(78845,78857) = 1

We will now calculate the prime factors of 78845 and 78857, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78845 and 78857.

How to find the GCF of 78845 and 78857?

We will first find the prime factorization of 78845 and 78857. After we will calculate the factors of 78845 and 78857 and find the biggest common factor number .

Step-1: Prime Factorization of 78845

Prime factors of 78845 are 5, 13, 1213. Prime factorization of 78845 in exponential form is:

78845 = 5¹ × 13¹ × 1213¹

Step-2: Prime Factorization of 78857

Prime factors of 78857 are 78857. Prime factorization of 78857 in exponential form is:

78857 = 78857¹

Step-3: Factors of 78845

List of positive integer factors of 78845 that divides 78845 without a remainder.

1, 5, 13, 65, 1213, 6065, 15769

Step-4: Factors of 78857

List of positive integer factors of 78857 that divides 78845 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78845 and 78857. The biggest common factor number is the GCF number.
So the greatest common factor 78845 and 78857 is 1.

Also check out the Least Common Multiple of 78845 and 78857