Factor

First, let's add all three numbers up. We get

\(333+183+401=917\)

 

Now, we must find factors of 917. 

 

There's actually only 4 of them, two of them which are 917 and 1. 

The other two are 7 and 131. 

 

\(7*131=917\)

 

So our two prime factors are 7 and 131. 

 

We have \(7+131=138\)

 

So 138 is our final answer. 

 

Thanks! :)