# Factor Dance — Prime factors Puzzle | Mathallery

Source: https://mathallery.com/games/dotfactors/

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# Factor Dance

Prime factors · 30 levels

Dots dance into rings of rings: every number's portrait.

## How to play

- Tap a prime ring to add it inside your stack: every dot splits into that many dots. Tap a ring in the stack to take it out.
- The first ring is the outside: 2 then 3 is two groups of 3; 3 then 2 is three pairs. Same number, different portrait!
- Copy the target portrait, build the given number, or name the number in a portrait (multiply the group sizes).

Read a portrait from the outside in: how many big groups? Inside one, how many smaller groups? Keep going down to single dots.

[Open Factor Dance](https://mathallery.com/#/play/dotfactors/1)

Teeter, Tint and Echo Heist are free starters. Other games unlock through earned game choices or permanent packs. Your progress stays in the browser; optional sign-in saves it to your website account.