What is the Greatest Common Factor of 1805 and 1816?

Greatest common factor (GCF) of 1805 and 1816 is 1.

GCF(1805,1816) = 1

We will now calculate the prime factors of 1805 and 1816, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1805 and 1816.

How to find the GCF of 1805 and 1816?

We will first find the prime factorization of 1805 and 1816. After we will calculate the factors of 1805 and 1816 and find the biggest common factor number .

Step-1: Prime Factorization of 1805

Prime factors of 1805 are 5, 19. Prime factorization of 1805 in exponential form is:

1805 = 5¹ × 19²

Step-2: Prime Factorization of 1816

Prime factors of 1816 are 2, 227. Prime factorization of 1816 in exponential form is:

1816 = 2³ × 227¹

Step-3: Factors of 1805

List of positive integer factors of 1805 that divides 1805 without a remainder.

1, 5, 19, 95, 361

Step-4: Factors of 1816

List of positive integer factors of 1816 that divides 1805 without a remainder.

1, 2, 4, 8, 227, 454, 908

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1805 and 1816. The biggest common factor number is the GCF number.
So the greatest common factor 1805 and 1816 is 1.

Also check out the Least Common Multiple of 1805 and 1816