Find $14^{-1}$ (mod $35$), as a residue modulo 35. (Give an answer between 0 and 34, inclusive.)
Find 14−1(mod35), as a residue modulo 35.
(Give an answer between 0 and 34, inclusive.)
Because gcd(14,35)=7≠1, so
14 is not invertible modulo 35
