What is the Greatest Common Factor of 39561 and 39570?

Greatest common factor (GCF) of 39561 and 39570 is 3.

GCF(39561,39570) = 3

We will now calculate the prime factors of 39561 and 39570, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39561 and 39570.

How to find the GCF of 39561 and 39570?

We will first find the prime factorization of 39561 and 39570. After we will calculate the factors of 39561 and 39570 and find the biggest common factor number .

Step-1: Prime Factorization of 39561

Prime factors of 39561 are 3, 13187. Prime factorization of 39561 in exponential form is:

39561 = 3¹ × 13187¹

Step-2: Prime Factorization of 39570

Prime factors of 39570 are 2, 3, 5, 1319. Prime factorization of 39570 in exponential form is:

39570 = 2¹ × 3¹ × 5¹ × 1319¹

Step-3: Factors of 39561

List of positive integer factors of 39561 that divides 39561 without a remainder.

1, 3, 13187

Step-4: Factors of 39570

List of positive integer factors of 39570 that divides 39561 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 1319, 2638, 3957, 6595, 7914, 13190, 19785

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39561 and 39570. The biggest common factor number is the GCF number.
So the greatest common factor 39561 and 39570 is 3.

Also check out the Least Common Multiple of 39561 and 39570