Remove all the blocks to make the composite number going out but keep the prime number. Click or tap the unused block to drop the composite numbers.
Mouse click Touch
Eg Em
Stay
My Cu
Candy
Break
Moto
Poker
Avoid
Poppy
Tow T
Merge
1 Bir
Hikin
Frenc
Merge
Simpl
Class
Fruit
Ape S
Candy
Battb
Field
Infer
Speed
Cave
Santa
Polic
Carto
Black
Hip H
Kitty
Sweet
Count