What is the Greatest Common Factor of 3805 and 3815?

Greatest common factor (GCF) of 3805 and 3815 is 5.

GCF(3805,3815) = 5

We will now calculate the prime factors of 3805 and 3815, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3805 and 3815.

How to find the GCF of 3805 and 3815?

We will first find the prime factorization of 3805 and 3815. After we will calculate the factors of 3805 and 3815 and find the biggest common factor number .

Step-1: Prime Factorization of 3805

Prime factors of 3805 are 5, 761. Prime factorization of 3805 in exponential form is:

3805 = 5¹ × 761¹

Step-2: Prime Factorization of 3815

Prime factors of 3815 are 5, 7, 109. Prime factorization of 3815 in exponential form is:

3815 = 5¹ × 7¹ × 109¹

Step-3: Factors of 3805

List of positive integer factors of 3805 that divides 3805 without a remainder.

1, 5, 761

Step-4: Factors of 3815

List of positive integer factors of 3815 that divides 3805 without a remainder.

1, 5, 7, 35, 109, 545, 763

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3805 and 3815. The biggest common factor number is the GCF number.
So the greatest common factor 3805 and 3815 is 5.

Also check out the Least Common Multiple of 3805 and 3815