What is the Greatest Common Factor of 21279 and 21298?

Greatest common factor (GCF) of 21279 and 21298 is 1.

GCF(21279,21298) = 1

We will now calculate the prime factors of 21279 and 21298, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21279 and 21298.

How to find the GCF of 21279 and 21298?

We will first find the prime factorization of 21279 and 21298. After we will calculate the factors of 21279 and 21298 and find the biggest common factor number .

Step-1: Prime Factorization of 21279

Prime factors of 21279 are 3, 41, 173. Prime factorization of 21279 in exponential form is:

21279 = 3¹ × 41¹ × 173¹

Step-2: Prime Factorization of 21298

Prime factors of 21298 are 2, 23, 463. Prime factorization of 21298 in exponential form is:

21298 = 2¹ × 23¹ × 463¹

Step-3: Factors of 21279

List of positive integer factors of 21279 that divides 21279 without a remainder.

1, 3, 41, 123, 173, 519, 7093

Step-4: Factors of 21298

List of positive integer factors of 21298 that divides 21279 without a remainder.

1, 2, 23, 46, 463, 926, 10649

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21279 and 21298. The biggest common factor number is the GCF number.
So the greatest common factor 21279 and 21298 is 1.

Also check out the Least Common Multiple of 21279 and 21298