What is the Greatest Common Factor of 39705 and 39709?

Greatest common factor (GCF) of 39705 and 39709 is 1.

GCF(39705,39709) = 1

We will now calculate the prime factors of 39705 and 39709, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39705 and 39709.

How to find the GCF of 39705 and 39709?

We will first find the prime factorization of 39705 and 39709. After we will calculate the factors of 39705 and 39709 and find the biggest common factor number .

Step-1: Prime Factorization of 39705

Prime factors of 39705 are 3, 5, 2647. Prime factorization of 39705 in exponential form is:

39705 = 3¹ × 5¹ × 2647¹

Step-2: Prime Factorization of 39709

Prime factors of 39709 are 39709. Prime factorization of 39709 in exponential form is:

39709 = 39709¹

Step-3: Factors of 39705

List of positive integer factors of 39705 that divides 39705 without a remainder.

1, 3, 5, 15, 2647, 7941, 13235

Step-4: Factors of 39709

List of positive integer factors of 39709 that divides 39705 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39705 and 39709. The biggest common factor number is the GCF number.
So the greatest common factor 39705 and 39709 is 1.

Also check out the Least Common Multiple of 39705 and 39709