What is the Greatest Common Factor of 1791 and 1808?

Greatest common factor (GCF) of 1791 and 1808 is 1.

GCF(1791,1808) = 1

We will now calculate the prime factors of 1791 and 1808, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1791 and 1808.

How to find the GCF of 1791 and 1808?

We will first find the prime factorization of 1791 and 1808. After we will calculate the factors of 1791 and 1808 and find the biggest common factor number .

Step-1: Prime Factorization of 1791

Prime factors of 1791 are 3, 199. Prime factorization of 1791 in exponential form is:

1791 = 3² × 199¹

Step-2: Prime Factorization of 1808

Prime factors of 1808 are 2, 113. Prime factorization of 1808 in exponential form is:

1808 = 2⁴ × 113¹

Step-3: Factors of 1791

List of positive integer factors of 1791 that divides 1791 without a remainder.

1, 3, 9, 199, 597

Step-4: Factors of 1808

List of positive integer factors of 1808 that divides 1791 without a remainder.

1, 2, 4, 8, 16, 113, 226, 452, 904

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1791 and 1808. The biggest common factor number is the GCF number.
So the greatest common factor 1791 and 1808 is 1.

Also check out the Least Common Multiple of 1791 and 1808