What is the Greatest Common Factor of 3813 and 3821?

Greatest common factor (GCF) of 3813 and 3821 is 1.

GCF(3813,3821) = 1

We will now calculate the prime factors of 3813 and 3821, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3813 and 3821.

How to find the GCF of 3813 and 3821?

We will first find the prime factorization of 3813 and 3821. After we will calculate the factors of 3813 and 3821 and find the biggest common factor number .

Step-1: Prime Factorization of 3813

Prime factors of 3813 are 3, 31, 41. Prime factorization of 3813 in exponential form is:

3813 = 3¹ × 31¹ × 41¹

Step-2: Prime Factorization of 3821

Prime factors of 3821 are 3821. Prime factorization of 3821 in exponential form is:

3821 = 3821¹

Step-3: Factors of 3813

List of positive integer factors of 3813 that divides 3813 without a remainder.

1, 3, 31, 41, 93, 123, 1271

Step-4: Factors of 3821

List of positive integer factors of 3821 that divides 3813 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3813 and 3821. The biggest common factor number is the GCF number.
So the greatest common factor 3813 and 3821 is 1.

Also check out the Least Common Multiple of 3813 and 3821