+0  
 
0
371
2
avatar

Find $4^{-1}$ (mod $35$), as a residue modulo 35. (Give an answer between 0 and 34, inclusive.)

 Jun 17, 2021
 #1
avatar
0

Solved this, don't need help anymore.

 Jun 17, 2021
 #2
avatar+118587 
+1

4X=35N+1   where N is an integer and x is between 0 and 34

 

4*9=35+1     (by inspection)

 

so  \(4^{-1}=9 \mod{35}\)

 

I don't know if this is the only answer  indecision

 Jun 18, 2021

3 Online Users

avatar
avatar