What is the greatest possible three-digit number that is divisible by 3 and divisible by 6?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the greatest possible three-digit number that is divisible by 3 and divisible by 6?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
996
What is the greatest possible three-digit number that is divisible by 3 and divisible by 6?
train