Get Modulus and exp from public key

Hi friends,
I'm extracting the public key from the X.509 certificate .Is there
any way i can extract modulus and exponent from the public
key. i'm using bouncy castle api . Any suggestions are greatly appreciated.
//Generate Certificate
//Extract public key
PublicKey merchKey = cert.getPublicKey();
//Pls suggest the way to extract mod and exp from public key
Regards
Jag

PublicKey merchKey = cert.getPublicKey();
RSAPublicKey rsaPub = (RSAPublicKey) merchKey;
BigInteger modulus = rsaPub.getModulus();
BigInteger exponent = rsaPub.getPublicExponent();

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Get Modulus and exp from public key

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