Hang the common gear. Four number plates swing over empty hubs. Drag the sprocket whose size is the greatest common factor onto the right hub. Three benches win.
Read the Pair
Each hanging plate shows two numbers. Find the greatest number that divides both.
Drag the Sprocket
Grab a brass sprocket from the bench. Drop it on the empty hub under the pair it matches.
Watch It Mesh
A correct gear locks and spins. A wrong gear bounces back and you lose a life.
Clear Three Benches
Fill every hub to roll a new bench. Three benches win. Three misses end the run.
A Bike Loft, Not a Quiz
Number pairs hang from a steel rail. Brass sprockets sit on the bench. You drag a gear onto a hub. A fit spins. A miss recoils.
Greatest Means Greatest
Each pair shares more than one factor. The sprocket that seats is the greatest common factor, not a smaller one that also divides both.
Three Benches
Clear all four hubs and a new bench rolls in. Easy uses small pairs. Hard hides a larger GCF behind a tempting smaller factor.
Score You Can Chase
Each mesh scores 100 plus a streak bonus. Three benches win. Three wrong gears end the run.
Sprocket Mesh is a sixth-grade greatest-common-factor game set in a night bike loft. Players drag sprockets onto hubs so each hanging number pair gets the gear that is their GCF. The skill is naming the greatest shared factor, not any shared factor.
You Move the Gear
There is no answer row of buttons. The sprocket has weight. Dropping it changes the bench.
Wrong Factors Feel Wrong
A smaller common factor will not seat. The hub rejects it, so the idea of greatest stays in the hands.
A Steady Stage
The rail, hubs, and bench keep the same height. Feedback is overlays and spin, not a layout jump.
Touch First
Each sprocket is a big drag target. Hubs light up when a gear is over them.
Drag a sprocket from the bench onto the hub under the number pair whose greatest common factor matches that sprocket.
Use the greatest one. A smaller common factor will not lock on the hub.
The size of the pairs and how well a smaller factor can hide the true GCF.
Mesh every pair on three benches. Three wrong drops end the run.
Sixth and seventh grade (about ages 11–13), when students find the greatest common factor of two whole numbers.