experiment 002
Sieve Playground
Watch integer fields evolve one operation at a time. Compare divisibility-based prime sieves with the position-based Lucky Number sieve, and inspect exactly which base eliminated every value.
Choose a process
Four sieves, one integer field
Frame
1 / 139
Survivors now
119
Inspections
0
Writes
0
Revisits
0
PrepareSieve of Eratosthenes
Prepare the candidate field
Every integer from 2 through 120 begins as a possible prime.
CandidateActive baseCurrent touchEliminatedFinal result
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Recent operations
Prepare the candidate field
#1Every integer from 2 through 120 begins as a possible prime.
Comparison mode
How much work does each sieve perform?
The counts below use the same limit. Prime sieves should agree on their result; Lucky Numbers intentionally produces a different sequence.
| Algorithm | Result | Inspections | Writes | Revisits | Relative work |
|---|---|---|---|---|---|
| Eratosthenes | 30 primes | 137 | 89 | 44 | |
| Euler linear | 30 primes | 208 | 89 | 0 | |
| Sundaram | 30 primes | 38 | 89 | 8 | |
| Lucky numbers | 26 lucky numbers | 372 | 94 | 0 |