What is the Greatest Common Factor of 21663 and 21673?

Greatest common factor (GCF) of 21663 and 21673 is 1.

GCF(21663,21673) = 1

We will now calculate the prime factors of 21663 and 21673, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21663 and 21673.

How to find the GCF of 21663 and 21673?

We will first find the prime factorization of 21663 and 21673. After we will calculate the factors of 21663 and 21673 and find the biggest common factor number .

Step-1: Prime Factorization of 21663

Prime factors of 21663 are 3, 29, 83. Prime factorization of 21663 in exponential form is:

21663 = 3² × 29¹ × 83¹

Step-2: Prime Factorization of 21673

Prime factors of 21673 are 21673. Prime factorization of 21673 in exponential form is:

21673 = 21673¹

Step-3: Factors of 21663

List of positive integer factors of 21663 that divides 21663 without a remainder.

1, 3, 9, 29, 83, 87, 249, 261, 747, 2407, 7221

Step-4: Factors of 21673

List of positive integer factors of 21673 that divides 21663 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21663 and 21673. The biggest common factor number is the GCF number.
So the greatest common factor 21663 and 21673 is 1.

Also check out the Least Common Multiple of 21663 and 21673