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Primel: The Daily 5-Digit Prime Number Challenge
What is Primel?
Master the Science of Primes
Primel is a sophisticated numerical puzzle designed for math enthusiasts and logic lovers. Inspired by Wordle, it challenges you to identify a hidden 5-digit prime number using deduction and mathematical knowledge. Unlike word games, every entry must be a valid 5-digit prime, making it a true test of your knowledge of number theory and pattern recognition.
How to play Primel
1. You have 6 attempts to guess the hidden 5-digit prime number.
1
3
5
6
7
2. Each guess must be a valid 5-digit prime number from our extensive database.
3. After each guess, the color of the tiles will change to show how close your guess was to the prime.
7
The 7 is in the prime and in the correct spot.
0
The 0 is in the prime but in the wrong spot.
3
The 3 is not in the prime in any spot.
Original Primel vs Primel.io
Original Primel
Limited prime set
Basic layout
English only
Standard web app
NEW
Primel.io (2026)
Full 5-digit set (8,363+ primes)
Ultra-minimalist Premium UI
Multi-language (EN, DE, ES)
High-speed SSG Architecture