How do you make factor pairs using 4 5 6 8 that have a product between 3000 and 5000?

(45,68)(45,86)(46,85)(48,65)(54,68)(54,86)(56,84)(58,64)
(4,856)(4,865)(5,648)(5,684)(5,846)(5,864)(6,548)(6,584)(8,456)(8,465)(8,546)(8,564)