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The 2nd Riesel Problem

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The 2nd Riesel problem involves determining the smallest Riesel numbers k•2n-1 for 509203 < k < 762701, the first and second Riesel k-values without any possible primes.

 
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m nmin nmax remain current target
12 4,096 8,191 ? 0 ?
Riesel primes
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