While this word comes from prodigy (a young someone who has an incredible ability) the adjective prodigious does not refer to someone being a prodigy. Prolific is an adjective used to describe someone or something as producing many things, as in fruit from a plant, music from a musician, or an athlete scoring points.

Prodigious is used to describe something extraordinary in size, amount, or extent, such as a prodigious memory or a prodigious storm. Whereas, prolific specifically refers to the capacity to produce a lot, typically used to describe artists, writers, or plants.