What is the Greatest Common Factor of 2561 and 2566?

Greatest common factor (GCF) of 2561 and 2566 is 1.

GCF(2561,2566) = 1

We will now calculate the prime factors of 2561 and 2566, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2561 and 2566.

How to find the GCF of 2561 and 2566?

We will first find the prime factorization of 2561 and 2566. After we will calculate the factors of 2561 and 2566 and find the biggest common factor number .

Step-1: Prime Factorization of 2561

Prime factors of 2561 are 13, 197. Prime factorization of 2561 in exponential form is:

2561 = 13¹ × 197¹

Step-2: Prime Factorization of 2566

Prime factors of 2566 are 2, 1283. Prime factorization of 2566 in exponential form is:

2566 = 2¹ × 1283¹

Step-3: Factors of 2561

List of positive integer factors of 2561 that divides 2561 without a remainder.

1, 13, 197

Step-4: Factors of 2566

List of positive integer factors of 2566 that divides 2561 without a remainder.

1, 2, 1283

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2561 and 2566. The biggest common factor number is the GCF number.
So the greatest common factor 2561 and 2566 is 1.

Also check out the Least Common Multiple of 2561 and 2566