What is the Greatest Common Factor of 78321 and 78340?

Greatest common factor (GCF) of 78321 and 78340 is 1.

GCF(78321,78340) = 1

We will now calculate the prime factors of 78321 and 78340, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78321 and 78340.

How to find the GCF of 78321 and 78340?

We will first find the prime factorization of 78321 and 78340. After we will calculate the factors of 78321 and 78340 and find the biggest common factor number .

Step-1: Prime Factorization of 78321

Prime factors of 78321 are 3, 26107. Prime factorization of 78321 in exponential form is:

78321 = 3¹ × 26107¹

Step-2: Prime Factorization of 78340

Prime factors of 78340 are 2, 5, 3917. Prime factorization of 78340 in exponential form is:

78340 = 2² × 5¹ × 3917¹

Step-3: Factors of 78321

List of positive integer factors of 78321 that divides 78321 without a remainder.

1, 3, 26107

Step-4: Factors of 78340

List of positive integer factors of 78340 that divides 78321 without a remainder.

1, 2, 4, 5, 10, 20, 3917, 7834, 15668, 19585, 39170

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78321 and 78340. The biggest common factor number is the GCF number.
So the greatest common factor 78321 and 78340 is 1.

Also check out the Least Common Multiple of 78321 and 78340