Product ParadoxPuzzle Corner

A student picks four whole numbers less than 10 that are all different and multiplies them together. Another student picks four whole numbers less than 10 that are all different and also multiplies them together. Although the numbers the two students picked are not all the same, they have identical products. How is this possible?

The challenge in this puzzle is to explain this paradox. Use the space below to show two unique sets of four different numbers that have the same product.

prod