Lucky Number Checker

Sieve-based number filter

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About Lucky Number Checker

A lucky number checker using the sieve of lucky numbers. Start with odds: 1,3,5,7,9,11,13,15,17,19... Remove every 3rd → 1,3,7,9,13,15,19,21,25... Remove every 7th → 1,3,7,9,13,15,21,25... Continue. Survivors are lucky numbers. Client-side.

Lucky Number Checker Features

  • Lucky test
  • Sieve generation
  • Sequence
  • Comparison to primes
  • Statistics

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