Question

in a certain language 45 is coded as 3, 35 is coded as 5, 6 is coded as 2. 34 will be coded as

Answer 1

Answer is 2 

45 = 3*3*5
35 = 5*7
6 = 2*3
34 = 2*17

We are using smallest prime factor in each case.
So, 34 can be coded as 2