What is the Greatest Common Factor of 11991 and 12011?

Greatest common factor (GCF) of 11991 and 12011 is 1.

GCF(11991,12011) = 1

We will now calculate the prime factors of 11991 and 12011, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11991 and 12011.

How to find the GCF of 11991 and 12011?

We will first find the prime factorization of 11991 and 12011. After we will calculate the factors of 11991 and 12011 and find the biggest common factor number .

Step-1: Prime Factorization of 11991

Prime factors of 11991 are 3, 7, 571. Prime factorization of 11991 in exponential form is:

11991 = 3¹ × 7¹ × 571¹

Step-2: Prime Factorization of 12011

Prime factors of 12011 are 12011. Prime factorization of 12011 in exponential form is:

12011 = 12011¹

Step-3: Factors of 11991

List of positive integer factors of 11991 that divides 11991 without a remainder.

1, 3, 7, 21, 571, 1713, 3997

Step-4: Factors of 12011

List of positive integer factors of 12011 that divides 11991 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11991 and 12011. The biggest common factor number is the GCF number.
So the greatest common factor 11991 and 12011 is 1.

Also check out the Least Common Multiple of 11991 and 12011