What is the Greatest Common Factor of 19481 and 19491?

Greatest common factor (GCF) of 19481 and 19491 is 1.

GCF(19481,19491) = 1

We will now calculate the prime factors of 19481 and 19491, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19481 and 19491.

How to find the GCF of 19481 and 19491?

We will first find the prime factorization of 19481 and 19491. After we will calculate the factors of 19481 and 19491 and find the biggest common factor number .

Step-1: Prime Factorization of 19481

Prime factors of 19481 are 7, 11, 23. Prime factorization of 19481 in exponential form is:

19481 = 7¹ × 11² × 23¹

Step-2: Prime Factorization of 19491

Prime factors of 19491 are 3, 73, 89. Prime factorization of 19491 in exponential form is:

19491 = 3¹ × 73¹ × 89¹

Step-3: Factors of 19481

List of positive integer factors of 19481 that divides 19481 without a remainder.

1, 7, 11, 23, 77, 121, 161, 253, 847, 1771, 2783

Step-4: Factors of 19491

List of positive integer factors of 19491 that divides 19481 without a remainder.

1, 3, 73, 89, 219, 267, 6497

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19481 and 19491. The biggest common factor number is the GCF number.
So the greatest common factor 19481 and 19491 is 1.

Also check out the Least Common Multiple of 19481 and 19491