What is the Greatest Common Factor of 19491 and 19510?

Greatest common factor (GCF) of 19491 and 19510 is 1.

GCF(19491,19510) = 1

We will now calculate the prime factors of 19491 and 19510, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19491 and 19510.

How to find the GCF of 19491 and 19510?

We will first find the prime factorization of 19491 and 19510. After we will calculate the factors of 19491 and 19510 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 19510

Prime factors of 19510 are 2, 5, 1951. Prime factorization of 19510 in exponential form is:

19510 = 2¹ × 5¹ × 1951¹

Step-3: Factors of 19491

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

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

Step-4: Factors of 19510

List of positive integer factors of 19510 that divides 19491 without a remainder.

1, 2, 5, 10, 1951, 3902, 9755

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19491 and 19510. The biggest common factor number is the GCF number.
So the greatest common factor 19491 and 19510 is 1.

Also check out the Least Common Multiple of 19491 and 19510