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Old 2014-12-04, 14:03   #187
unconnected
 
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May 2009
Russia, Moscow

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BTW, there was a gap between NPLB(n<600k) and RPS 11th drive (started from n=666666). I checked this range for k=2001-2049 and found some primes:

2007*2^619422-1
2009*2^640696-1
2007*2^658365-1
2009*2^660920-1
2045*2^662044-1
2013*2^660179-1
2019*2^661337-1
2037*2^628032-1
2037*2^638768-1
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