What is the Greatest Common Factor of 17809 and 17821?

Greatest common factor (GCF) of 17809 and 17821 is 1.

GCF(17809,17821) = 1

We will now calculate the prime factors of 17809 and 17821, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17809 and 17821.

How to find the GCF of 17809 and 17821?

We will first find the prime factorization of 17809 and 17821. After we will calculate the factors of 17809 and 17821 and find the biggest common factor number .

Step-1: Prime Factorization of 17809

Prime factors of 17809 are 11, 1619. Prime factorization of 17809 in exponential form is:

17809 = 11¹ × 1619¹

Step-2: Prime Factorization of 17821

Prime factors of 17821 are 71, 251. Prime factorization of 17821 in exponential form is:

17821 = 71¹ × 251¹

Step-3: Factors of 17809

List of positive integer factors of 17809 that divides 17809 without a remainder.

1, 11, 1619

Step-4: Factors of 17821

List of positive integer factors of 17821 that divides 17809 without a remainder.

1, 71, 251

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17809 and 17821. The biggest common factor number is the GCF number.
So the greatest common factor 17809 and 17821 is 1.

Also check out the Least Common Multiple of 17809 and 17821