Sources close to the incarcerated MC tell TMZ ... on the heels of getting sentenced to 46 months in prison, Kodak's shooting to get a college diploma by the time he gets out. We're told he's interested in pursuing business and marketing. The federal prison in Florida where he's doing his time offers classes, and he plans to register.

That's not where his learning road ends. Our sources say Kodak's actually planning to take the SAT when he's eventually released in hopes of getting into the University of Florida and earning a bachelor's degree.

Of course, this follows his previous goal of wanting a GED about a year ago while he was locked up. We're told he ended up getting it, BTW.

And, as if biz and marketing reading isn't enough, we're told he'll be supplementing that with some other literature to get his creative juices flowing -- good, old-fashioned Friedrich Nietzche books, in fact. Ah yes, "The Death of God," "The Superman" and "The Will To Power." Heavy stuff, but time's on his side. Sorta.

In addition to his nearly 4-year sentence, Kodak was just hit with two new counts of gun possession last week and could get up to 30 more years for each charge.