What is the Greatest Common Factor of 1815 and 1826?

Greatest common factor (GCF) of 1815 and 1826 is 11.

GCF(1815,1826) = 11

We will now calculate the prime factors of 1815 and 1826, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1815 and 1826.

How to find the GCF of 1815 and 1826?

We will first find the prime factorization of 1815 and 1826. After we will calculate the factors of 1815 and 1826 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 1826

Prime factors of 1826 are 2, 11, 83. Prime factorization of 1826 in exponential form is:

1826 = 2¹ × 11¹ × 83¹

Step-3: Factors of 1815

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

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

Step-4: Factors of 1826

List of positive integer factors of 1826 that divides 1815 without a remainder.

1, 2, 11, 22, 83, 166, 913

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1815 and 1826. The biggest common factor number is the GCF number.
So the greatest common factor 1815 and 1826 is 11.

Also check out the Least Common Multiple of 1815 and 1826