key generation question

Joe Vender jvender at
Thu Jun 15 22:35:11 CEST 2006

Is it possible - and if so, how - to generate an RSA key in which the 
size of the key is a prime number? For example, a key size of 4013, 
4051, etc. ? Every time I try to use a prime number for the key size, 
PGP rounds the size up to a non-prime number. Why will it not 
generate a key of ANY size between 1024-4096?

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