What is the Greatest Common Factor of 22140 and 22155?

Greatest common factor (GCF) of 22140 and 22155 is 15.

GCF(22140,22155) = 15

We will now calculate the prime factors of 22140 and 22155, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 22140 and 22155.

How to find the GCF of 22140 and 22155?

We will first find the prime factorization of 22140 and 22155. After we will calculate the factors of 22140 and 22155 and find the biggest common factor number .

Step-1: Prime Factorization of 22140

Prime factors of 22140 are 2, 3, 5, 41. Prime factorization of 22140 in exponential form is:

22140 = 2² × 3³ × 5¹ × 41¹

Step-2: Prime Factorization of 22155

Prime factors of 22155 are 3, 5, 7, 211. Prime factorization of 22155 in exponential form is:

22155 = 3¹ × 5¹ × 7¹ × 211¹

Step-3: Factors of 22140

List of positive integer factors of 22140 that divides 22140 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 82, 90, 108, 123, 135, 164, 180, 205, 246, 270, 369, 410, 492, 540, 615, 738, 820, 1107, 1230, 1476, 1845, 2214, 2460, 3690, 4428, 5535, 7380, 11070

Step-4: Factors of 22155

List of positive integer factors of 22155 that divides 22140 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105, 211, 633, 1055, 1477, 3165, 4431, 7385

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 22140 and 22155. The biggest common factor number is the GCF number.
So the greatest common factor 22140 and 22155 is 15.

Also check out the Least Common Multiple of 22140 and 22155