Create openssl key from key elements

[Amanda Von Flue]

Hello!

If I have an generated key and write openssl rsa -pubout -in
private_key.pem -out public_key.pem
I will get the contents of the key listing modulus, publicExponent,
privateExponent, prime1&2 and Exponent1&2.

I wonder how I do the reverse operation, that is from the 7 parameters
create the .pem file. Can I do that with openssl or do I have to to it
manually.

Thanks, Amanda