What is the Greatest Common Factor of 43440 and 43455?

Greatest common factor (GCF) of 43440 and 43455 is 15.

GCF(43440,43455) = 15

We will now calculate the prime factors of 43440 and 43455, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 43440 and 43455.

How to find the GCF of 43440 and 43455?

We will first find the prime factorization of 43440 and 43455. After we will calculate the factors of 43440 and 43455 and find the biggest common factor number .

Step-1: Prime Factorization of 43440

Prime factors of 43440 are 2, 3, 5, 181. Prime factorization of 43440 in exponential form is:

43440 = 2⁴ × 3¹ × 5¹ × 181¹

Step-2: Prime Factorization of 43455

Prime factors of 43455 are 3, 5, 2897. Prime factorization of 43455 in exponential form is:

43455 = 3¹ × 5¹ × 2897¹

Step-3: Factors of 43440

List of positive integer factors of 43440 that divides 43440 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 181, 240, 362, 543, 724, 905, 1086, 1448, 1810, 2172, 2715, 2896, 3620, 4344, 5430, 7240, 8688, 10860, 14480, 21720

Step-4: Factors of 43455

List of positive integer factors of 43455 that divides 43440 without a remainder.

1, 3, 5, 15, 2897, 8691, 14485

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 43440 and 43455. The biggest common factor number is the GCF number.
So the greatest common factor 43440 and 43455 is 15.

Also check out the Least Common Multiple of 43440 and 43455