What is the Greatest Common Factor of 17765 and 17781?

Greatest common factor (GCF) of 17765 and 17781 is 1.

GCF(17765,17781) = 1

We will now calculate the prime factors of 17765 and 17781, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17765 and 17781.

How to find the GCF of 17765 and 17781?

We will first find the prime factorization of 17765 and 17781. After we will calculate the factors of 17765 and 17781 and find the biggest common factor number .

Step-1: Prime Factorization of 17765

Prime factors of 17765 are 5, 11, 17, 19. Prime factorization of 17765 in exponential form is:

17765 = 5¹ × 11¹ × 17¹ × 19¹

Step-2: Prime Factorization of 17781

Prime factors of 17781 are 3, 5927. Prime factorization of 17781 in exponential form is:

17781 = 3¹ × 5927¹

Step-3: Factors of 17765

List of positive integer factors of 17765 that divides 17765 without a remainder.

1, 5, 11, 17, 19, 55, 85, 95, 187, 209, 323, 935, 1045, 1615, 3553

Step-4: Factors of 17781

List of positive integer factors of 17781 that divides 17765 without a remainder.

1, 3, 5927

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17765 and 17781. The biggest common factor number is the GCF number.
So the greatest common factor 17765 and 17781 is 1.

Also check out the Least Common Multiple of 17765 and 17781