The greatest common divisor (GCD) of 18 and 27 is 9
. To calculate the GCD, you can use different methods such as listing common factors, long division method, or prime factorization method
. Here are the factors of 18 and 27:
- Factors of 18: 1, 2, 3, 6, 9, and 18
- Factors of 27: 1, 3, 9, and 27
There are 3 common factors of 18 and 27, which are 1, 3, and 9. Therefore, the highest common factor of 18 and 27 is 9