What is the Greatest Common Factor of 39681 and 39699?

Greatest common factor (GCF) of 39681 and 39699 is 9.

GCF(39681,39699) = 9

We will now calculate the prime factors of 39681 and 39699, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39681 and 39699.

How to find the GCF of 39681 and 39699?

We will first find the prime factorization of 39681 and 39699. After we will calculate the factors of 39681 and 39699 and find the biggest common factor number .

Step-1: Prime Factorization of 39681

Prime factors of 39681 are 3, 4409. Prime factorization of 39681 in exponential form is:

39681 = 3² × 4409¹

Step-2: Prime Factorization of 39699

Prime factors of 39699 are 3, 11, 401. Prime factorization of 39699 in exponential form is:

39699 = 3² × 11¹ × 401¹

Step-3: Factors of 39681

List of positive integer factors of 39681 that divides 39681 without a remainder.

1, 3, 9, 4409, 13227

Step-4: Factors of 39699

List of positive integer factors of 39699 that divides 39681 without a remainder.

1, 3, 9, 11, 33, 99, 401, 1203, 3609, 4411, 13233

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39681 and 39699. The biggest common factor number is the GCF number.
So the greatest common factor 39681 and 39699 is 9.

Also check out the Least Common Multiple of 39681 and 39699