What is the Greatest Common Factor of 21165 and 21179?

Greatest common factor (GCF) of 21165 and 21179 is 1.

GCF(21165,21179) = 1

We will now calculate the prime factors of 21165 and 21179, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21165 and 21179.

How to find the GCF of 21165 and 21179?

We will first find the prime factorization of 21165 and 21179. After we will calculate the factors of 21165 and 21179 and find the biggest common factor number .

Step-1: Prime Factorization of 21165

Prime factors of 21165 are 3, 5, 17, 83. Prime factorization of 21165 in exponential form is:

21165 = 3¹ × 5¹ × 17¹ × 83¹

Step-2: Prime Factorization of 21179

Prime factors of 21179 are 21179. Prime factorization of 21179 in exponential form is:

21179 = 21179¹

Step-3: Factors of 21165

List of positive integer factors of 21165 that divides 21165 without a remainder.

1, 3, 5, 15, 17, 51, 83, 85, 249, 255, 415, 1245, 1411, 4233, 7055

Step-4: Factors of 21179

List of positive integer factors of 21179 that divides 21165 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21165 and 21179. The biggest common factor number is the GCF number.
So the greatest common factor 21165 and 21179 is 1.

Also check out the Least Common Multiple of 21165 and 21179