What is the Greatest Common Factor of 17721 and 17725?

Greatest common factor (GCF) of 17721 and 17725 is 1.

GCF(17721,17725) = 1

We will now calculate the prime factors of 17721 and 17725, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17721 and 17725.

How to find the GCF of 17721 and 17725?

We will first find the prime factorization of 17721 and 17725. After we will calculate the factors of 17721 and 17725 and find the biggest common factor number .

Step-1: Prime Factorization of 17721

Prime factors of 17721 are 3, 11, 179. Prime factorization of 17721 in exponential form is:

17721 = 3² × 11¹ × 179¹

Step-2: Prime Factorization of 17725

Prime factors of 17725 are 5, 709. Prime factorization of 17725 in exponential form is:

17725 = 5² × 709¹

Step-3: Factors of 17721

List of positive integer factors of 17721 that divides 17721 without a remainder.

1, 3, 9, 11, 33, 99, 179, 537, 1611, 1969, 5907

Step-4: Factors of 17725

List of positive integer factors of 17725 that divides 17721 without a remainder.

1, 5, 25, 709, 3545

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17721 and 17725. The biggest common factor number is the GCF number.
So the greatest common factor 17721 and 17725 is 1.

Also check out the Least Common Multiple of 17721 and 17725