What is the Greatest Common Factor of 43155 and 43170?

Greatest common factor (GCF) of 43155 and 43170 is 15.

GCF(43155,43170) = 15

We will now calculate the prime factors of 43155 and 43170, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 43155 and 43170.

How to find the GCF of 43155 and 43170?

We will first find the prime factorization of 43155 and 43170. After we will calculate the factors of 43155 and 43170 and find the biggest common factor number .

Step-1: Prime Factorization of 43155

Prime factors of 43155 are 3, 5, 7, 137. Prime factorization of 43155 in exponential form is:

43155 = 3² × 5¹ × 7¹ × 137¹

Step-2: Prime Factorization of 43170

Prime factors of 43170 are 2, 3, 5, 1439. Prime factorization of 43170 in exponential form is:

43170 = 2¹ × 3¹ × 5¹ × 1439¹

Step-3: Factors of 43155

List of positive integer factors of 43155 that divides 43155 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 137, 315, 411, 685, 959, 1233, 2055, 2877, 4795, 6165, 8631, 14385

Step-4: Factors of 43170

List of positive integer factors of 43170 that divides 43155 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 1439, 2878, 4317, 7195, 8634, 14390, 21585

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 43155 and 43170. The biggest common factor number is the GCF number.
So the greatest common factor 43155 and 43170 is 15.

Also check out the Least Common Multiple of 43155 and 43170