Decision Workspace
primal-check vs feanor-math vs primal
Side-by-side comparison of Rust crates
50
primal-check
growingv0.3.4
Fast standalone primality testing.
58
feanor-math
stablev3.5.18
A library for number theory, providing implementations for arithmetic in various rings and algorithms working on them.
49
primal
growingv0.3.3
`primal` puts raw power into prime numbers. This crates includes: optimised prime sieves, checking for primality, enumerating primes, factorising numbers, and state-of-the-art estimation of upper and lower bounds for π(n) (the number of primes below n) and p_k (the k-th prime).
Core Metrics
| primal-check | feanor-math | primal | |
|---|---|---|---|
| Health Score | 50 | 58 | 49 |
| Total Downloads | 19.3M | 79.8K | 935.6K |
| 30d Downloads | 1.8M | 0 | 26.8K |
| Dependents | 63 | 44 | 249 |
| Releases | 9 | 104 | 9 |
| Last Updated | 717d ago | 48d ago | 717d ago |
| Age | 10y 11m | 2y 9m | 11y |
Health Breakdown
primal-check
Maintenance
4
Quality
16
Community
10
Popularity
8
Documentation
12
feanor-math
Maintenance
16
Quality
18
Community
8
Popularity
6
Documentation
10
primal
Maintenance
3
Quality
15
Community
12
Popularity
7
Documentation
12
Technical Details
| primal-check | feanor-math | primal | |
|---|---|---|---|
| Version | 0.3.4 | 3.5.18 | 0.3.3 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT OR Apache-2.0 |
| Dependencies | 2 | 18 | 5 |
| Crate Size | 9KB | 444KB | 26KB |
| Features | 1 | 7 | 1 |
| Yanked % | 0.0% | 1.9% | 0.0% |
| Edition | 2018 | 2024 | 2018 |
| MSRV | — | — | — |
| Owners | 2 | 1 | 2 |
Links
Quick Verdict
- •feanor-math leads with a health score of 58/100, but none of the options score above 80.
- •primal-check has the most downloads (19.3M), suggesting wider adoption.
- •primal is depended on by 249 crates — strongest ecosystem trust.
- •⚠ primal-check, primal have not been updated in over a year.
- •primal-check, primal are pre-1.0 — API may change.