What is the positive difference between the two largest prime factors of $159137$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the positive difference between the two largest prime factors of $159137$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
14
What is the positive difference between the two largest prime factors of $159137$?
train