What is the Greatest Common Factor of 13403 and 13420?

Greatest common factor (GCF) of 13403 and 13420 is 1.

GCF(13403,13420) = 1

We will now calculate the prime factors of 13403 and 13420, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13403 and 13420.

How to find the GCF of 13403 and 13420?

We will first find the prime factorization of 13403 and 13420. After we will calculate the factors of 13403 and 13420 and find the biggest common factor number .

Step-1: Prime Factorization of 13403

Prime factors of 13403 are 13, 1031. Prime factorization of 13403 in exponential form is:

13403 = 13¹ × 1031¹

Step-2: Prime Factorization of 13420

Prime factors of 13420 are 2, 5, 11, 61. Prime factorization of 13420 in exponential form is:

13420 = 2² × 5¹ × 11¹ × 61¹

Step-3: Factors of 13403

List of positive integer factors of 13403 that divides 13403 without a remainder.

1, 13, 1031

Step-4: Factors of 13420

List of positive integer factors of 13420 that divides 13403 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13403 and 13420. The biggest common factor number is the GCF number.
So the greatest common factor 13403 and 13420 is 1.

Also check out the Least Common Multiple of 13403 and 13420