What is the Greatest Common Factor of 77388 and 77405?

Greatest common factor (GCF) of 77388 and 77405 is 1.

GCF(77388,77405) = 1

We will now calculate the prime factors of 77388 and 77405, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77388 and 77405.

How to find the GCF of 77388 and 77405?

We will first find the prime factorization of 77388 and 77405. After we will calculate the factors of 77388 and 77405 and find the biggest common factor number .

Step-1: Prime Factorization of 77388

Prime factors of 77388 are 2, 3, 6449. Prime factorization of 77388 in exponential form is:

77388 = 2² × 3¹ × 6449¹

Step-2: Prime Factorization of 77405

Prime factors of 77405 are 5, 113, 137. Prime factorization of 77405 in exponential form is:

77405 = 5¹ × 113¹ × 137¹

Step-3: Factors of 77388

List of positive integer factors of 77388 that divides 77388 without a remainder.

1, 2, 3, 4, 6, 12, 6449, 12898, 19347, 25796, 38694

Step-4: Factors of 77405

List of positive integer factors of 77405 that divides 77388 without a remainder.

1, 5, 113, 137, 565, 685, 15481

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77388 and 77405. The biggest common factor number is the GCF number.
So the greatest common factor 77388 and 77405 is 1.

Also check out the Least Common Multiple of 77388 and 77405