What is the Greatest Common Factor of 78605 and 78621?

Greatest common factor (GCF) of 78605 and 78621 is 1.

GCF(78605,78621) = 1

We will now calculate the prime factors of 78605 and 78621, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78605 and 78621.

How to find the GCF of 78605 and 78621?

We will first find the prime factorization of 78605 and 78621. After we will calculate the factors of 78605 and 78621 and find the biggest common factor number .

Step-1: Prime Factorization of 78605

Prime factors of 78605 are 5, 79, 199. Prime factorization of 78605 in exponential form is:

78605 = 5¹ × 79¹ × 199¹

Step-2: Prime Factorization of 78621

Prime factors of 78621 are 3, 73, 359. Prime factorization of 78621 in exponential form is:

78621 = 3¹ × 73¹ × 359¹

Step-3: Factors of 78605

List of positive integer factors of 78605 that divides 78605 without a remainder.

1, 5, 79, 199, 395, 995, 15721

Step-4: Factors of 78621

List of positive integer factors of 78621 that divides 78605 without a remainder.

1, 3, 73, 219, 359, 1077, 26207

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78605 and 78621. The biggest common factor number is the GCF number.
So the greatest common factor 78605 and 78621 is 1.

Also check out the Least Common Multiple of 78605 and 78621