What is the Greatest Common Factor of 21465 and 21469?

Greatest common factor (GCF) of 21465 and 21469 is 1.

GCF(21465,21469) = 1

We will now calculate the prime factors of 21465 and 21469, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21465 and 21469.

How to find the GCF of 21465 and 21469?

We will first find the prime factorization of 21465 and 21469. After we will calculate the factors of 21465 and 21469 and find the biggest common factor number .

Step-1: Prime Factorization of 21465

Prime factors of 21465 are 3, 5, 53. Prime factorization of 21465 in exponential form is:

21465 = 3⁴ × 5¹ × 53¹

Step-2: Prime Factorization of 21469

Prime factors of 21469 are 7, 3067. Prime factorization of 21469 in exponential form is:

21469 = 7¹ × 3067¹

Step-3: Factors of 21465

List of positive integer factors of 21465 that divides 21465 without a remainder.

1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 265, 405, 477, 795, 1431, 2385, 4293, 7155

Step-4: Factors of 21469

List of positive integer factors of 21469 that divides 21465 without a remainder.

1, 7, 3067

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21465 and 21469. The biggest common factor number is the GCF number.
So the greatest common factor 21465 and 21469 is 1.

Also check out the Least Common Multiple of 21465 and 21469