What is the Greatest Common Factor of 17290 and 17309?

Greatest common factor (GCF) of 17290 and 17309 is 19.

GCF(17290,17309) = 19

We will now calculate the prime factors of 17290 and 17309, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17290 and 17309.

How to find the GCF of 17290 and 17309?

We will first find the prime factorization of 17290 and 17309. After we will calculate the factors of 17290 and 17309 and find the biggest common factor number .

Step-1: Prime Factorization of 17290

Prime factors of 17290 are 2, 5, 7, 13, 19. Prime factorization of 17290 in exponential form is:

17290 = 2¹ × 5¹ × 7¹ × 13¹ × 19¹

Step-2: Prime Factorization of 17309

Prime factors of 17309 are 19, 911. Prime factorization of 17309 in exponential form is:

17309 = 19¹ × 911¹

Step-3: Factors of 17290

List of positive integer factors of 17290 that divides 17290 without a remainder.

1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1235, 1330, 1729, 2470, 3458, 8645

Step-4: Factors of 17309

List of positive integer factors of 17309 that divides 17290 without a remainder.

1, 19, 911

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17290 and 17309. The biggest common factor number is the GCF number.
So the greatest common factor 17290 and 17309 is 19.

Also check out the Least Common Multiple of 17290 and 17309