If $a=7$ and $b=13$, what is the number of even positive integers less than $ab$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
If $a=7$ and $b=13$, what is the number of even positive integers less than $ab$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
45
If $a=7$ and $b=13$, what is the number of even positive integers less than $ab$?
train