What is the Greatest Common Factor of 17115 and 17121?

Greatest common factor (GCF) of 17115 and 17121 is 3.

GCF(17115,17121) = 3

We will now calculate the prime factors of 17115 and 17121, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17115 and 17121.

How to find the GCF of 17115 and 17121?

We will first find the prime factorization of 17115 and 17121. After we will calculate the factors of 17115 and 17121 and find the biggest common factor number .

Step-1: Prime Factorization of 17115

Prime factors of 17115 are 3, 5, 7, 163. Prime factorization of 17115 in exponential form is:

17115 = 3¹ × 5¹ × 7¹ × 163¹

Step-2: Prime Factorization of 17121

Prime factors of 17121 are 3, 13, 439. Prime factorization of 17121 in exponential form is:

17121 = 3¹ × 13¹ × 439¹

Step-3: Factors of 17115

List of positive integer factors of 17115 that divides 17115 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105, 163, 489, 815, 1141, 2445, 3423, 5705

Step-4: Factors of 17121

List of positive integer factors of 17121 that divides 17115 without a remainder.

1, 3, 13, 39, 439, 1317, 5707

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17115 and 17121. The biggest common factor number is the GCF number.
So the greatest common factor 17115 and 17121 is 3.

Also check out the Least Common Multiple of 17115 and 17121