What is the Greatest Common Factor of 78299 and 78318?

Greatest common factor (GCF) of 78299 and 78318 is 19.

GCF(78299,78318) = 19

We will now calculate the prime factors of 78299 and 78318, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78299 and 78318.

How to find the GCF of 78299 and 78318?

We will first find the prime factorization of 78299 and 78318. After we will calculate the factors of 78299 and 78318 and find the biggest common factor number .

Step-1: Prime Factorization of 78299

Prime factors of 78299 are 13, 19, 317. Prime factorization of 78299 in exponential form is:

78299 = 13¹ × 19¹ × 317¹

Step-2: Prime Factorization of 78318

Prime factors of 78318 are 2, 3, 19, 229. Prime factorization of 78318 in exponential form is:

78318 = 2¹ × 3² × 19¹ × 229¹

Step-3: Factors of 78299

List of positive integer factors of 78299 that divides 78299 without a remainder.

1, 13, 19, 247, 317, 4121, 6023

Step-4: Factors of 78318

List of positive integer factors of 78318 that divides 78299 without a remainder.

1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 229, 342, 458, 687, 1374, 2061, 4122, 4351, 8702, 13053, 26106, 39159

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78299 and 78318. The biggest common factor number is the GCF number.
So the greatest common factor 78299 and 78318 is 19.

Also check out the Least Common Multiple of 78299 and 78318