M245Sieve - 25 35 6 16 26 36 7 17 27 37 8 18 28 38 9 19 29...

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Which of these are prime? 11 21 31 2 12 22 32 3 13 23 33 4 14 24 34 5 15 25 35 6 16 26 36 7 17 27 37 8 18 28 38 9 19 29 39 10 20 30 40
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Sieve of Eratosthenes (3 rd Century B.C.) Red: Can't Be Primes Eliminating Multiples of 2 (except 2, itself) 11 21 31 2 12 22 32 3 13 23 33 4 14 24 34 5 15 25 35 6 16 26 36 7 17 27 37 8 18 28 38 9 19 29 39 10 20 30 40
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Sieve of Eratosthenes (3 rd Century B.C.) Red: Can't Be Primes Eliminating Multiples of 2 and 3 (except 2 and 3, themselves) 11 21 31 2 12 22 32 3 13 23 33 4 14 24 34 5 15
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Unformatted text preview: 25 35 6 16 26 36 7 17 27 37 8 18 28 38 9 19 29 39 10 20 30 40 Sieve of Eratosthenes (3 rd Century B.C.) Red: Can't Be Primes Eliminating Multiples of 2, 3, and 5 (except 2, 3, and 5, themselves) 11 21 31 2 12 22 32 3 13 23 33 4 14 24 34 5 15 25 35 6 16 26 36 7 17 27 37 8 18 28 38 9 19 29 39 10 20 30 40...
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M245Sieve - 25 35 6 16 26 36 7 17 27 37 8 18 28 38 9 19 29...

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