What is the Greatest Common Factor of 13455 and 13470?

Greatest common factor (GCF) of 13455 and 13470 is 15.

GCF(13455,13470) = 15

We will now calculate the prime factors of 13455 and 13470, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13455 and 13470.

How to find the GCF of 13455 and 13470?

We will first find the prime factorization of 13455 and 13470. After we will calculate the factors of 13455 and 13470 and find the biggest common factor number .

Step-1: Prime Factorization of 13455

Prime factors of 13455 are 3, 5, 13, 23. Prime factorization of 13455 in exponential form is:

13455 = 3² × 5¹ × 13¹ × 23¹

Step-2: Prime Factorization of 13470

Prime factors of 13470 are 2, 3, 5, 449. Prime factorization of 13470 in exponential form is:

13470 = 2¹ × 3¹ × 5¹ × 449¹

Step-3: Factors of 13455

List of positive integer factors of 13455 that divides 13455 without a remainder.

1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 2691, 4485

Step-4: Factors of 13470

List of positive integer factors of 13470 that divides 13455 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 449, 898, 1347, 2245, 2694, 4490, 6735

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13455 and 13470. The biggest common factor number is the GCF number.
So the greatest common factor 13455 and 13470 is 15.

Also check out the Least Common Multiple of 13455 and 13470