What is the Greatest Common Factor of 5603 and 5621?

Greatest common factor (GCF) of 5603 and 5621 is 1.

GCF(5603,5621) = 1

We will now calculate the prime factors of 5603 and 5621, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 5603 and 5621.

How to find the GCF of 5603 and 5621?

We will first find the prime factorization of 5603 and 5621. After we will calculate the factors of 5603 and 5621 and find the biggest common factor number .

Step-1: Prime Factorization of 5603

Prime factors of 5603 are 13, 431. Prime factorization of 5603 in exponential form is:

5603 = 13¹ × 431¹

Step-2: Prime Factorization of 5621

Prime factors of 5621 are 7, 11, 73. Prime factorization of 5621 in exponential form is:

5621 = 7¹ × 11¹ × 73¹

Step-3: Factors of 5603

List of positive integer factors of 5603 that divides 5603 without a remainder.

1, 13, 431

Step-4: Factors of 5621

List of positive integer factors of 5621 that divides 5603 without a remainder.

1, 7, 11, 73, 77, 511, 803

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 5603 and 5621. The biggest common factor number is the GCF number.
So the greatest common factor 5603 and 5621 is 1.

Also check out the Least Common Multiple of 5603 and 5621