What is the Greatest Common Factor of 21153 and 21163?

Greatest common factor (GCF) of 21153 and 21163 is 1.

GCF(21153,21163) = 1

We will now calculate the prime factors of 21153 and 21163, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21153 and 21163.

How to find the GCF of 21153 and 21163?

We will first find the prime factorization of 21153 and 21163. After we will calculate the factors of 21153 and 21163 and find the biggest common factor number .

Step-1: Prime Factorization of 21153

Prime factors of 21153 are 3, 11, 641. Prime factorization of 21153 in exponential form is:

21153 = 3¹ × 11¹ × 641¹

Step-2: Prime Factorization of 21163

Prime factors of 21163 are 21163. Prime factorization of 21163 in exponential form is:

21163 = 21163¹

Step-3: Factors of 21153

List of positive integer factors of 21153 that divides 21153 without a remainder.

1, 3, 11, 33, 641, 1923, 7051

Step-4: Factors of 21163

List of positive integer factors of 21163 that divides 21153 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21153 and 21163. The biggest common factor number is the GCF number.
So the greatest common factor 21153 and 21163 is 1.

Also check out the Least Common Multiple of 21153 and 21163