What is the Greatest Common Factor of 21495 and 21501?

Greatest common factor (GCF) of 21495 and 21501 is 3.

GCF(21495,21501) = 3

We will now calculate the prime factors of 21495 and 21501, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21495 and 21501.

How to find the GCF of 21495 and 21501?

We will first find the prime factorization of 21495 and 21501. After we will calculate the factors of 21495 and 21501 and find the biggest common factor number .

Step-1: Prime Factorization of 21495

Prime factors of 21495 are 3, 5, 1433. Prime factorization of 21495 in exponential form is:

21495 = 3¹ × 5¹ × 1433¹

Step-2: Prime Factorization of 21501

Prime factors of 21501 are 3, 2389. Prime factorization of 21501 in exponential form is:

21501 = 3² × 2389¹

Step-3: Factors of 21495

List of positive integer factors of 21495 that divides 21495 without a remainder.

1, 3, 5, 15, 1433, 4299, 7165

Step-4: Factors of 21501

List of positive integer factors of 21501 that divides 21495 without a remainder.

1, 3, 9, 2389, 7167

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21495 and 21501. The biggest common factor number is the GCF number.
So the greatest common factor 21495 and 21501 is 3.

Also check out the Least Common Multiple of 21495 and 21501