What is the Greatest Common Factor of 17985 and 17989?

Greatest common factor (GCF) of 17985 and 17989 is 1.

GCF(17985,17989) = 1

We will now calculate the prime factors of 17985 and 17989, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17985 and 17989.

How to find the GCF of 17985 and 17989?

We will first find the prime factorization of 17985 and 17989. After we will calculate the factors of 17985 and 17989 and find the biggest common factor number .

Step-1: Prime Factorization of 17985

Prime factors of 17985 are 3, 5, 11, 109. Prime factorization of 17985 in exponential form is:

17985 = 3¹ × 5¹ × 11¹ × 109¹

Step-2: Prime Factorization of 17989

Prime factors of 17989 are 17989. Prime factorization of 17989 in exponential form is:

17989 = 17989¹

Step-3: Factors of 17985

List of positive integer factors of 17985 that divides 17985 without a remainder.

1, 3, 5, 11, 15, 33, 55, 109, 165, 327, 545, 1199, 1635, 3597, 5995

Step-4: Factors of 17989

List of positive integer factors of 17989 that divides 17985 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17985 and 17989. The biggest common factor number is the GCF number.
So the greatest common factor 17985 and 17989 is 1.

Also check out the Least Common Multiple of 17985 and 17989