Answer:
18
Step-by-step explanation:
The factors of 54 are: 1 , 2 , 3 , 6 , 9 , 18 , 27 , 54 − 1 , − 2 , − 3 , − 6 , − 9 , − 18 , − 27 , − 54
The factors of 36 are: 1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36 − 1 , − 2 , − 3 , − 4 , − 6 , − 9 , − 12 , − 18 , − 36
The greatest factor that both 36 and 54 share are 18.
