Answer:
27
Step-by-step explanation:
Using Prime Factorization:
The Prime Factorization of 9 is: 
The Prime Factorization of 27 is: 
Using the highest factorization, the LCM is 27.

Using the GCF Formula:
LCM(a,b) = ( a × b) / GCF(a,b)
GCF(9,27) = 9
LCM(9,27) = ( 9 × 27) / 9
LCM(9,27) = 243 / 9
LCM(9,27) = 27