What is the Greatest Common Factor of 8557 and 8561?

Greatest common factor (GCF) of 8557 and 8561 is 1.

GCF(8557,8561) = 1

We will now calculate the prime factors of 8557 and 8561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8557 and 8561.

How to find the GCF of 8557 and 8561?

We will first find the prime factorization of 8557 and 8561. After we will calculate the factors of 8557 and 8561 and find the biggest common factor number .

Step-1: Prime Factorization of 8557

Prime factors of 8557 are 43, 199. Prime factorization of 8557 in exponential form is:

8557 = 43¹ × 199¹

Step-2: Prime Factorization of 8561

Prime factors of 8561 are 7, 1223. Prime factorization of 8561 in exponential form is:

8561 = 7¹ × 1223¹

Step-3: Factors of 8557

List of positive integer factors of 8557 that divides 8557 without a remainder.

1, 43, 199

Step-4: Factors of 8561

List of positive integer factors of 8561 that divides 8557 without a remainder.

1, 7, 1223

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8557 and 8561. The biggest common factor number is the GCF number.
So the greatest common factor 8557 and 8561 is 1.

Also check out the Least Common Multiple of 8557 and 8561