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I want to say the minimum score is atleats a 620 but its other things that factor in. I have heard about people with 700's getting denied.
Have you tried Discover Pre-Qualify Page?
As the poster above said, Try their Prequal. It's really YMMV depending on each one's profile.
But if you're an 18 yr old, all they need for their Student DiscoverIt is just a "pulse" and some college acceptance docs!