What is the Greatest Common Factor of 4991 and 4995?

Greatest common factor (GCF) of 4991 and 4995 is 1.

GCF(4991,4995) = 1

We will now calculate the prime factors of 4991 and 4995, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4991 and 4995.

How to find the GCF of 4991 and 4995?

We will first find the prime factorization of 4991 and 4995. After we will calculate the factors of 4991 and 4995 and find the biggest common factor number .

Step-1: Prime Factorization of 4991

Prime factors of 4991 are 7, 23, 31. Prime factorization of 4991 in exponential form is:

4991 = 7¹ × 23¹ × 31¹

Step-2: Prime Factorization of 4995

Prime factors of 4995 are 3, 5, 37. Prime factorization of 4995 in exponential form is:

4995 = 3³ × 5¹ × 37¹

Step-3: Factors of 4991

List of positive integer factors of 4991 that divides 4991 without a remainder.

1, 7, 23, 31, 161, 217, 713

Step-4: Factors of 4995

List of positive integer factors of 4995 that divides 4991 without a remainder.

1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4991 and 4995. The biggest common factor number is the GCF number.
So the greatest common factor 4991 and 4995 is 1.

Also check out the Least Common Multiple of 4991 and 4995