Question on RSA cryptosystem


#1

In a RSA cryptosystem, ’ A’ uses two prime numbers p=13 and q=11 to generate his public and private keys. If the public key of A is 37, then the private key of A is _____


#2

Listen dude
Remember this expression.
Public key * Private Key = 1 mod ((p-1)* (q-1))
Solve accordingly