Two-Numbers Machine Lab
Set b and c with sliders and watch every factor pair of c line up: the pair whose sum hits b glows gold — that is your factorization.
Find the pair that sums to b
Drag b (−12 to 12) and c (−24 to 24, not 0). Each dot is a factor pair of c plotted as (first, second); the pair summing to b lights up.