What is the Greatest Common Factor of 1804 and 1815?

Greatest common factor (GCF) of 1804 and 1815 is 11.

GCF(1804,1815) = 11

We will now calculate the prime factors of 1804 and 1815, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1804 and 1815.

How to find the GCF of 1804 and 1815?

We will first find the prime factorization of 1804 and 1815. After we will calculate the factors of 1804 and 1815 and find the biggest common factor number .

Step-1: Prime Factorization of 1804

Prime factors of 1804 are 2, 11, 41. Prime factorization of 1804 in exponential form is:

1804 = 2² × 11¹ × 41¹

Step-2: Prime Factorization of 1815

Prime factors of 1815 are 3, 5, 11. Prime factorization of 1815 in exponential form is:

1815 = 3¹ × 5¹ × 11²

Step-3: Factors of 1804

List of positive integer factors of 1804 that divides 1804 without a remainder.

1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902

Step-4: Factors of 1815

List of positive integer factors of 1815 that divides 1804 without a remainder.

1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1804 and 1815. The biggest common factor number is the GCF number.
So the greatest common factor 1804 and 1815 is 11.

Also check out the Least Common Multiple of 1804 and 1815