A grid of numbers and one target, devour only the cells that are factors (or multiples) of it, and watch the columns collapse as you clear.
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How to play
Each target sets the rule: in factor mode you may only eat cells that divide the target, in multiple mode only cells that are multiples of it. A valid eat removes the cell and drops the column above it under gravity; an invalid eat breaks your combo and costs you. Clear every valid cell for the target to advance to the next one. You're racing a round timer, so quick, correct eats and combos score best.
Eat only factors of the target (or only multiples, depending on the mode).
Clearing a cell drops the column above it into the gap.
Wrong eats are penalized and reset your combo.
Clear all valid cells to move to the next target before time runs out.
Game modes
Daily: the same board for everyone, in Easy, Medium, or Hard.
Practice: fresh random boards at your chosen difficulty.
Controls
Desktop: click a cell to eat it.
Phone & tablet: tap a cell to eat it.
Tips & strategy
Check 1 and the target itself first, they're always factors, easy combo starters.
For multiples, scan for the target's small multiples before the big ones hiding up top.
Keep a streak alive; combos multiply your score far more than rushing into a wrong eat.
What you'll learn
Factor Forge turns factor and multiple recognition into a fast, gravity-driven clearing puzzle, building the multiplicative number sense behind fractions and algebra.
Skills: factors and multiples, divisibility, times tables, prime numbers
Best for: roughly grades 4–7 (ages 9–13)
For parents & teachers: rapid factor practice that pays off across the curriculum.
About Factor Forge
Factor Forge is an original, free browser game that turns factor and multiple recognition into a fast, gravity-driven clearing puzzle. Play instantly, no account needed.
A free, original browser game on PlayPendium. No download, no install.
