What is the Greatest Common Factor of 78557 and 78563?

Greatest common factor (GCF) of 78557 and 78563 is 1.

GCF(78557,78563) = 1

We will now calculate the prime factors of 78557 and 78563, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78557 and 78563.

How to find the GCF of 78557 and 78563?

We will first find the prime factorization of 78557 and 78563. After we will calculate the factors of 78557 and 78563 and find the biggest common factor number .

Step-1: Prime Factorization of 78557

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

78557 = 17¹ × 4621¹

Step-2: Prime Factorization of 78563

Prime factors of 78563 are 251, 313. Prime factorization of 78563 in exponential form is:

78563 = 251¹ × 313¹

Step-3: Factors of 78557

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

1, 17, 4621

Step-4: Factors of 78563

List of positive integer factors of 78563 that divides 78557 without a remainder.

1, 251, 313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78557 and 78563. The biggest common factor number is the GCF number.
So the greatest common factor 78557 and 78563 is 1.

Also check out the Least Common Multiple of 78557 and 78563