Discrete Mathematics/Sieve of Eratosthenes
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The Sieve of Eratosthenes is a w:prime number finding method of w:factorial elimination. The method involves selecting a w:domain and proceeding from the initial member to remove from the set any numbers which are multiples of the initial member. The remaining numbers in the resultant w:subset are the prime numbers from the initial w:superset Example: The domain 2-10
2, 3, 4, 5, 6, 7, 8, 9, 10 2, 3,4, 5,6, 7,8, 9,10remove multiples of '2' 2, 3,4, 5,6, 7,8,9,10remove multiples of '3' 2, 3,4, 5,6, 7,8,9,10remove multiples of '5' 2, 3,4, 5,6, 7,8,9,10remove multiples of '7'
With the resultant set: {2, 3, 5, 7}, just the primes.