In a product pyramid, each field contains a positive integer that is the product of the numbers in the two adjacent fields from the lower level. At the top of a three-level product pyramid, the number is 90.

![](https://cdn.mathpix.com/cropped/2024_04_17_a7ae5c887c970a6f6dc9g-1.jpg?height=254&width=485&top_left_y=1615&top_left_x=791)

What number can be in the marked field? Determine all possibilities.

(A. Bohiniková)