What is the Greatest Common Factor of 78543 and 78557?

Greatest common factor (GCF) of 78543 and 78557 is 1.

GCF(78543,78557) = 1

We will now calculate the prime factors of 78543 and 78557, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78543 and 78557.

How to find the GCF of 78543 and 78557?

We will first find the prime factorization of 78543 and 78557. After we will calculate the factors of 78543 and 78557 and find the biggest common factor number .

Step-1: Prime Factorization of 78543

Prime factors of 78543 are 3, 2909. Prime factorization of 78543 in exponential form is:

78543 = 3³ × 2909¹

Step-2: Prime Factorization of 78557

Prime factors of 78557 are 17, 4621. Prime factorization of 78557 in exponential form is:

78557 = 17¹ × 4621¹

Step-3: Factors of 78543

List of positive integer factors of 78543 that divides 78543 without a remainder.

1, 3, 9, 27, 2909, 8727, 26181

Step-4: Factors of 78557

List of positive integer factors of 78557 that divides 78543 without a remainder.

1, 17, 4621

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78543 and 78557. The biggest common factor number is the GCF number.
So the greatest common factor 78543 and 78557 is 1.

Also check out the Least Common Multiple of 78543 and 78557