What is the Greatest Common Factor of 77643 and 77655?

Greatest common factor (GCF) of 77643 and 77655 is 3.

GCF(77643,77655) = 3

We will now calculate the prime factors of 77643 and 77655, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77643 and 77655.

How to find the GCF of 77643 and 77655?

We will first find the prime factorization of 77643 and 77655. After we will calculate the factors of 77643 and 77655 and find the biggest common factor number .

Step-1: Prime Factorization of 77643

Prime factors of 77643 are 3, 8627. Prime factorization of 77643 in exponential form is:

77643 = 3² × 8627¹

Step-2: Prime Factorization of 77655

Prime factors of 77655 are 3, 5, 31, 167. Prime factorization of 77655 in exponential form is:

77655 = 3¹ × 5¹ × 31¹ × 167¹

Step-3: Factors of 77643

List of positive integer factors of 77643 that divides 77643 without a remainder.

1, 3, 9, 8627, 25881

Step-4: Factors of 77655

List of positive integer factors of 77655 that divides 77643 without a remainder.

1, 3, 5, 15, 31, 93, 155, 167, 465, 501, 835, 2505, 5177, 15531, 25885

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77643 and 77655. The biggest common factor number is the GCF number.
So the greatest common factor 77643 and 77655 is 3.

Also check out the Least Common Multiple of 77643 and 77655