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Finding Prime Families by Digit Replacement
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[QUOTE="Arman777, post: 6010069, member: 579807"] Yes indeed. I couldn't think any better algorithm. This one seemed fine and solves in 6-7 sec. Below one million yes 4 and 5 doesn't make much sense since the numbers are already 6 digits its not possible to find 8 prime set from them. Why not 1 digit replacement. Well with 1 digit replacement we can max achieve 7 prime set I guess. Cause in each 3 change the sum of the digits will be the multiples of 3 so they cannot be prime. For 2 digits I guess its same kind of reason ? [/QUOTE]
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Finding Prime Families by Digit Replacement
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