Unlink Factor

Unlink Factor is a logic puzzle game about removing factors from numbers in the cells of a main board by picking one at the time from a factor board.
Beware! Factors can be picked only from the top row of the factor board, and they remove only the numbers divisible by that factor from the lower row of the main board. When a number reduces to one it disappears.
Only factors that have at least one active match on the main board can be picked.
What is the right sequence of moves to clear both boards?

Also check the Unlink version of the game, which uses shapes instead of numbers and it is a bit easier to play, yet still challenging.