What is the Greatest Common Factor of 9503 and 9520?

Greatest common factor (GCF) of 9503 and 9520 is 17.

GCF(9503,9520) = 17

We will now calculate the prime factors of 9503 and 9520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9503 and 9520.

How to find the GCF of 9503 and 9520?

We will first find the prime factorization of 9503 and 9520. After we will calculate the factors of 9503 and 9520 and find the biggest common factor number .

Step-1: Prime Factorization of 9503

Prime factors of 9503 are 13, 17, 43. Prime factorization of 9503 in exponential form is:

9503 = 13¹ × 17¹ × 43¹

Step-2: Prime Factorization of 9520

Prime factors of 9520 are 2, 5, 7, 17. Prime factorization of 9520 in exponential form is:

9520 = 2⁴ × 5¹ × 7¹ × 17¹

Step-3: Factors of 9503

List of positive integer factors of 9503 that divides 9503 without a remainder.

1, 13, 17, 43, 221, 559, 731

Step-4: Factors of 9520

List of positive integer factors of 9520 that divides 9503 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2380, 4760

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9503 and 9520. The biggest common factor number is the GCF number.
So the greatest common factor 9503 and 9520 is 17.

Also check out the Least Common Multiple of 9503 and 9520