What is the Greatest Common Factor of 78378 and 78391?

Greatest common factor (GCF) of 78378 and 78391 is 1.

GCF(78378,78391) = 1

We will now calculate the prime factors of 78378 and 78391, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78378 and 78391.

How to find the GCF of 78378 and 78391?

We will first find the prime factorization of 78378 and 78391. After we will calculate the factors of 78378 and 78391 and find the biggest common factor number .

Step-1: Prime Factorization of 78378

Prime factors of 78378 are 2, 3, 13063. Prime factorization of 78378 in exponential form is:

78378 = 2¹ × 3¹ × 13063¹

Step-2: Prime Factorization of 78391

Prime factors of 78391 are 277, 283. Prime factorization of 78391 in exponential form is:

78391 = 277¹ × 283¹

Step-3: Factors of 78378

List of positive integer factors of 78378 that divides 78378 without a remainder.

1, 2, 3, 6, 13063, 26126, 39189

Step-4: Factors of 78391

List of positive integer factors of 78391 that divides 78378 without a remainder.

1, 277, 283

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78378 and 78391. The biggest common factor number is the GCF number.
So the greatest common factor 78378 and 78391 is 1.

Also check out the Least Common Multiple of 78378 and 78391