What is the Greatest Common Factor of 78366 and 78385?

Greatest common factor (GCF) of 78366 and 78385 is 1.

GCF(78366,78385) = 1

We will now calculate the prime factors of 78366 and 78385, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78366 and 78385.

How to find the GCF of 78366 and 78385?

We will first find the prime factorization of 78366 and 78385. After we will calculate the factors of 78366 and 78385 and find the biggest common factor number .

Step-1: Prime Factorization of 78366

Prime factors of 78366 are 2, 3, 37, 353. Prime factorization of 78366 in exponential form is:

78366 = 2¹ × 3¹ × 37¹ × 353¹

Step-2: Prime Factorization of 78385

Prime factors of 78385 are 5, 61, 257. Prime factorization of 78385 in exponential form is:

78385 = 5¹ × 61¹ × 257¹

Step-3: Factors of 78366

List of positive integer factors of 78366 that divides 78366 without a remainder.

1, 2, 3, 6, 37, 74, 111, 222, 353, 706, 1059, 2118, 13061, 26122, 39183

Step-4: Factors of 78385

List of positive integer factors of 78385 that divides 78366 without a remainder.

1, 5, 61, 257, 305, 1285, 15677

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78366 and 78385. The biggest common factor number is the GCF number.
So the greatest common factor 78366 and 78385 is 1.

Also check out the Least Common Multiple of 78366 and 78385