Math Games for Adults
A math game designed for adults who want a real mental challenge.
Most math games are designed for kids. Prime 59 is built for adults who want a genuine brain challenge. The five difficulty levels range from Easy (a relaxing warm-up) to Master (a serious test of logic and speed). The time-based scoring system rewards efficiency, the ELO rating tracks your competitive standing, and the multiplayer Battle Mode lets you race friends and strangers in real-time. If you’re an adult looking for a math game that respects your intelligence and keeps you engaged, Prime 59 delivers.
How It Works
Three steps to your first solve.
Pick Your Difficulty
Choose from Easy to Master — five levels that scale to match your skill.
Fill the Grid
Place prime numbers so every row and column sums to exactly 59.
Beat the Clock
Faster times earn higher scores. Compete on leaderboards or battle friends live.
Everything You Need
Prime Numbers Only
Use 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, and 31 to fill the grid.
5 Difficulty Levels
Easy to Master — from relaxing warm-ups to serious brain challenges.
Daily Challenge
A new puzzle every day, the same for every player worldwide.
Multiplayer Battles
Race friends or random opponents in real-time 1v1 puzzle races.
Global Leaderboards
ELO ratings, daily rankings, and per-difficulty leaderboards.
32 Languages
Play in your language — available in 32 languages worldwide.
Frequently Asked Questions
Ready to Play?
Download Prime 59 for free and start solving. Available on iOS, Android, and the web.