What is the Greatest Common Factor of 16989 and 17003?

Greatest common factor (GCF) of 16989 and 17003 is 7.

GCF(16989,17003) = 7

We will now calculate the prime factors of 16989 and 17003, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16989 and 17003.

How to find the GCF of 16989 and 17003?

We will first find the prime factorization of 16989 and 17003. After we will calculate the factors of 16989 and 17003 and find the biggest common factor number .

Step-1: Prime Factorization of 16989

Prime factors of 16989 are 3, 7, 809. Prime factorization of 16989 in exponential form is:

16989 = 3¹ × 7¹ × 809¹

Step-2: Prime Factorization of 17003

Prime factors of 17003 are 7, 347. Prime factorization of 17003 in exponential form is:

17003 = 7² × 347¹

Step-3: Factors of 16989

List of positive integer factors of 16989 that divides 16989 without a remainder.

1, 3, 7, 21, 809, 2427, 5663

Step-4: Factors of 17003

List of positive integer factors of 17003 that divides 16989 without a remainder.

1, 7, 49, 347, 2429

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16989 and 17003. The biggest common factor number is the GCF number.
So the greatest common factor 16989 and 17003 is 7.

Also check out the Least Common Multiple of 16989 and 17003