Prime Numbers Tool
List primes in a range or generate the nth prime.
Input Data
Range or nth-prime mode.
N
Lo
Hi
Results
Primes or the nth prime.
2^2×3×7
Explanatory note about the result.
84 = 2^2×3×7
At a glance:Generate primes via a sieve or trial division; the nth prime is the n-th in order. Complements prime-check and sieve.
Formula
primes by sieve of Eratosthenes.
How to Use
- Pick a mode and enter bounds or n.
- The tool returns primes.
Case Studies
range 2..10
2,3,5,7.
FAQ
How many primes below 100?
25.
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.