What is the Greatest Common Factor of 39745 and 39765?

Greatest common factor (GCF) of 39745 and 39765 is 5.

GCF(39745,39765) = 5

We will now calculate the prime factors of 39745 and 39765, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39745 and 39765.

How to find the GCF of 39745 and 39765?

We will first find the prime factorization of 39745 and 39765. After we will calculate the factors of 39745 and 39765 and find the biggest common factor number .

Step-1: Prime Factorization of 39745

Prime factors of 39745 are 5, 7949. Prime factorization of 39745 in exponential form is:

39745 = 5¹ × 7949¹

Step-2: Prime Factorization of 39765

Prime factors of 39765 are 3, 5, 11, 241. Prime factorization of 39765 in exponential form is:

39765 = 3¹ × 5¹ × 11¹ × 241¹

Step-3: Factors of 39745

List of positive integer factors of 39745 that divides 39745 without a remainder.

1, 5, 7949

Step-4: Factors of 39765

List of positive integer factors of 39765 that divides 39745 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165, 241, 723, 1205, 2651, 3615, 7953, 13255

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39745 and 39765. The biggest common factor number is the GCF number.
So the greatest common factor 39745 and 39765 is 5.

Also check out the Least Common Multiple of 39745 and 39765