What is the Greatest Common Factor of 11991 and 11995?

Greatest common factor (GCF) of 11991 and 11995 is 1.

GCF(11991,11995) = 1

We will now calculate the prime factors of 11991 and 11995, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11991 and 11995.

How to find the GCF of 11991 and 11995?

We will first find the prime factorization of 11991 and 11995. After we will calculate the factors of 11991 and 11995 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 11995

Prime factors of 11995 are 5, 2399. Prime factorization of 11995 in exponential form is:

11995 = 5¹ × 2399¹

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 11995

List of positive integer factors of 11995 that divides 11991 without a remainder.

1, 5, 2399

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11991 and 11995. The biggest common factor number is the GCF number.
So the greatest common factor 11991 and 11995 is 1.

Also check out the Least Common Multiple of 11991 and 11995