What is the Greatest Common Factor of 1995 and 2013?

Greatest common factor (GCF) of 1995 and 2013 is 3.

GCF(1995,2013) = 3

We will now calculate the prime factors of 1995 and 2013, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1995 and 2013.

How to find the GCF of 1995 and 2013?

We will first find the prime factorization of 1995 and 2013. After we will calculate the factors of 1995 and 2013 and find the biggest common factor number .

Step-1: Prime Factorization of 1995

Prime factors of 1995 are 3, 5, 7, 19. Prime factorization of 1995 in exponential form is:

1995 = 3¹ × 5¹ × 7¹ × 19¹

Step-2: Prime Factorization of 2013

Prime factors of 2013 are 3, 11, 61. Prime factorization of 2013 in exponential form is:

2013 = 3¹ × 11¹ × 61¹

Step-3: Factors of 1995

List of positive integer factors of 1995 that divides 1995 without a remainder.

1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665

Step-4: Factors of 2013

List of positive integer factors of 2013 that divides 1995 without a remainder.

1, 3, 11, 33, 61, 183, 671

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1995 and 2013. The biggest common factor number is the GCF number.
So the greatest common factor 1995 and 2013 is 3.

Also check out the Least Common Multiple of 1995 and 2013