 Quote by dalcde
Removing the multiples of 2 and 3 is the first to steps of the normal sieve.
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right. and that's not even needed in this sieve because we do not even consider them so there is no need to remove them. We only consider N/3 instead of N then sieve since the multiples of 2 and 3 make up 2/3 of the numbers up to N.