X509Certificate2 PublicKey can't get the right value

hope you can help me. i'm using X509Certificate2 and X509Store to write a certificate (.pfx) into X509Store. Then i go to the dns and request the publicKey token from it, once it reply i see the publicKey i get is in Base64 wheres when i find the proper X509Certificate2 from the X509Store i cant find any way to represent publicKey to match the one i get from the dns.

how can i get the base64 representation of the public key to look like dns?!

I have already tried to use: byte[] arrBytes = certificate2.GetPublicKey(); and byte[] arrBytes = certificate2.PublicKey.EncodedKeyValue.RawData

both are not giving me the same base64 as the one i get from dns, or am i missing some thing?!

Thanks for the help :)