sieve of Eratosthenes

sieve of Er·a·tos·the·nes \-ˌer-ə-ˈtäs-thə-ˌnēz\

Definition of sieve of Eratosthenes

  1. :  a procedure for finding prime numbers that involves writing down the odd numbers from 2 up in succession and crossing out every third number after 3, every fifth after 5 including those already crossed out, every seventh after 7, and so on with the numbers that are never crossed out being prime


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