What is the Greatest Common Factor of 11561 and 11570?

Greatest common factor (GCF) of 11561 and 11570 is 1.

GCF(11561,11570) = 1

We will now calculate the prime factors of 11561 and 11570, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11561 and 11570.

How to find the GCF of 11561 and 11570?

We will first find the prime factorization of 11561 and 11570. After we will calculate the factors of 11561 and 11570 and find the biggest common factor number .

Step-1: Prime Factorization of 11561

Prime factors of 11561 are 11, 1051. Prime factorization of 11561 in exponential form is:

11561 = 11¹ × 1051¹

Step-2: Prime Factorization of 11570

Prime factors of 11570 are 2, 5, 13, 89. Prime factorization of 11570 in exponential form is:

11570 = 2¹ × 5¹ × 13¹ × 89¹

Step-3: Factors of 11561

List of positive integer factors of 11561 that divides 11561 without a remainder.

1, 11, 1051

Step-4: Factors of 11570

List of positive integer factors of 11570 that divides 11561 without a remainder.

1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 5785

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11561 and 11570. The biggest common factor number is the GCF number.
So the greatest common factor 11561 and 11570 is 1.

Also check out the Least Common Multiple of 11561 and 11570