What is the Greatest Common Factor of 39771 and 39785?

Greatest common factor (GCF) of 39771 and 39785 is 1.

GCF(39771,39785) = 1

We will now calculate the prime factors of 39771 and 39785, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39771 and 39785.

How to find the GCF of 39771 and 39785?

We will first find the prime factorization of 39771 and 39785. After we will calculate the factors of 39771 and 39785 and find the biggest common factor number .

Step-1: Prime Factorization of 39771

Prime factors of 39771 are 3, 491. Prime factorization of 39771 in exponential form is:

39771 = 3⁴ × 491¹

Step-2: Prime Factorization of 39785

Prime factors of 39785 are 5, 73, 109. Prime factorization of 39785 in exponential form is:

39785 = 5¹ × 73¹ × 109¹

Step-3: Factors of 39771

List of positive integer factors of 39771 that divides 39771 without a remainder.

1, 3, 9, 27, 81, 491, 1473, 4419, 13257

Step-4: Factors of 39785

List of positive integer factors of 39785 that divides 39771 without a remainder.

1, 5, 73, 109, 365, 545, 7957

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39771 and 39785. The biggest common factor number is the GCF number.
So the greatest common factor 39771 and 39785 is 1.

Also check out the Least Common Multiple of 39771 and 39785