What is the Greatest Common Factor of 21433 and 21438?

Greatest common factor (GCF) of 21433 and 21438 is 1.

GCF(21433,21438) = 1

We will now calculate the prime factors of 21433 and 21438, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21433 and 21438.

How to find the GCF of 21433 and 21438?

We will first find the prime factorization of 21433 and 21438. After we will calculate the factors of 21433 and 21438 and find the biggest common factor number .

Step-1: Prime Factorization of 21433

Prime factors of 21433 are 21433. Prime factorization of 21433 in exponential form is:

21433 = 21433¹

Step-2: Prime Factorization of 21438

Prime factors of 21438 are 2, 3, 397. Prime factorization of 21438 in exponential form is:

21438 = 2¹ × 3³ × 397¹

Step-3: Factors of 21433

List of positive integer factors of 21433 that divides 21433 without a remainder.

Step-4: Factors of 21438

List of positive integer factors of 21438 that divides 21433 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 397, 794, 1191, 2382, 3573, 7146, 10719

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21433 and 21438. The biggest common factor number is the GCF number.
So the greatest common factor 21433 and 21438 is 1.

Also check out the Least Common Multiple of 21433 and 21438