What is the Greatest Common Factor of 3681 and 3690?

Greatest common factor (GCF) of 3681 and 3690 is 9.

GCF(3681,3690) = 9

We will now calculate the prime factors of 3681 and 3690, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3681 and 3690.

How to find the GCF of 3681 and 3690?

We will first find the prime factorization of 3681 and 3690. After we will calculate the factors of 3681 and 3690 and find the biggest common factor number .

Step-1: Prime Factorization of 3681

Prime factors of 3681 are 3, 409. Prime factorization of 3681 in exponential form is:

3681 = 3² × 409¹

Step-2: Prime Factorization of 3690

Prime factors of 3690 are 2, 3, 5, 41. Prime factorization of 3690 in exponential form is:

3690 = 2¹ × 3² × 5¹ × 41¹

Step-3: Factors of 3681

List of positive integer factors of 3681 that divides 3681 without a remainder.

1, 3, 9, 409, 1227

Step-4: Factors of 3690

List of positive integer factors of 3690 that divides 3681 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 82, 90, 123, 205, 246, 369, 410, 615, 738, 1230, 1845

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3681 and 3690. The biggest common factor number is the GCF number.
So the greatest common factor 3681 and 3690 is 9.

Also check out the Least Common Multiple of 3681 and 3690