How far a walk is Newark Penn to the Prudential Center?

Yes, it is about a good 5 minute to a 8 minute walk depending on the traffic, it's really easy.

5 minute walk

I would put both places on a maps app. That would tell you exactly. But it's not far, if the weather is okay, and you can walk 15 mins. or so.

It's a two - three minute walk.