Factor Gems

Factor Gems is a number puzzle where matching changes the numbers.

Line up four or more gems that share a prime factor, such as 2, 6, 10 and 14. Every gem in the line is divided by that factor. The 2 becomes 1 and disappears, the others turn into 3, 5 and 7, and the falling gems can set off the next chain.

What's in the full game

• 50 levels across five floating islands
• Endless Challenge, where points buy extra moves
• The Gem Workshop: merge gems into their product, or split them into factors
• The Number Atlas: collect all 256 numbers, each with a short, true story
• Eleven languages. New in 1.1: prime-numbered levels after the first island have their own board shapes

Get the full game

Free to download, and one purchase unlocks the full game. No ads, no subscriptions, no account, and it plays offline.

• Android and iPhone: myrioragames.com/get
• App Store: Factor Gems on the App Store
• More about the game: myrioragames.com/factor-gems

The browser demo here is the first island. Factor Gems is the first game from Myriora, a two-person team making it in our spare time. We also make free maths and English lessons for families: myrioragames.com/learn