What is the Greatest Common Factor of 3861 and 3869?

Greatest common factor (GCF) of 3861 and 3869 is 1.

GCF(3861,3869) = 1

We will now calculate the prime factors of 3861 and 3869, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3861 and 3869.

How to find the GCF of 3861 and 3869?

We will first find the prime factorization of 3861 and 3869. After we will calculate the factors of 3861 and 3869 and find the biggest common factor number .

Step-1: Prime Factorization of 3861

Prime factors of 3861 are 3, 11, 13. Prime factorization of 3861 in exponential form is:

3861 = 3³ × 11¹ × 13¹

Step-2: Prime Factorization of 3869

Prime factors of 3869 are 53, 73. Prime factorization of 3869 in exponential form is:

3869 = 53¹ × 73¹

Step-3: Factors of 3861

List of positive integer factors of 3861 that divides 3861 without a remainder.

1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 297, 351, 429, 1287

Step-4: Factors of 3869

List of positive integer factors of 3869 that divides 3861 without a remainder.

1, 53, 73

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3861 and 3869. The biggest common factor number is the GCF number.
So the greatest common factor 3861 and 3869 is 1.

Also check out the Least Common Multiple of 3861 and 3869