What is the Greatest Common Factor of 39670 and 39685?

Greatest common factor (GCF) of 39670 and 39685 is 5.

GCF(39670,39685) = 5

We will now calculate the prime factors of 39670 and 39685, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39670 and 39685.

How to find the GCF of 39670 and 39685?

We will first find the prime factorization of 39670 and 39685. After we will calculate the factors of 39670 and 39685 and find the biggest common factor number .

Step-1: Prime Factorization of 39670

Prime factors of 39670 are 2, 5, 3967. Prime factorization of 39670 in exponential form is:

39670 = 2¹ × 5¹ × 3967¹

Step-2: Prime Factorization of 39685

Prime factors of 39685 are 5, 7937. Prime factorization of 39685 in exponential form is:

39685 = 5¹ × 7937¹

Step-3: Factors of 39670

List of positive integer factors of 39670 that divides 39670 without a remainder.

1, 2, 5, 10, 3967, 7934, 19835

Step-4: Factors of 39685

List of positive integer factors of 39685 that divides 39670 without a remainder.

1, 5, 7937

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39670 and 39685. The biggest common factor number is the GCF number.
So the greatest common factor 39670 and 39685 is 5.

Also check out the Least Common Multiple of 39670 and 39685