What is the Greatest Common Factor of 1863 and 1881?

Greatest common factor (GCF) of 1863 and 1881 is 9.

GCF(1863,1881) = 9

We will now calculate the prime factors of 1863 and 1881, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1863 and 1881.

How to find the GCF of 1863 and 1881?

We will first find the prime factorization of 1863 and 1881. After we will calculate the factors of 1863 and 1881 and find the biggest common factor number .

Step-1: Prime Factorization of 1863

Prime factors of 1863 are 3, 23. Prime factorization of 1863 in exponential form is:

1863 = 3⁴ × 23¹

Step-2: Prime Factorization of 1881

Prime factors of 1881 are 3, 11, 19. Prime factorization of 1881 in exponential form is:

1881 = 3² × 11¹ × 19¹

Step-3: Factors of 1863

List of positive integer factors of 1863 that divides 1863 without a remainder.

1, 3, 9, 23, 27, 69, 81, 207, 621

Step-4: Factors of 1881

List of positive integer factors of 1881 that divides 1863 without a remainder.

1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1863 and 1881. The biggest common factor number is the GCF number.
So the greatest common factor 1863 and 1881 is 9.

Also check out the Least Common Multiple of 1863 and 1881