Thread: Octoproths
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Old 2005-04-07, 08:40   #3
axn
 
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Jun 2003

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k=925905105, n=64

925905105*2^64+1
925905105*2^64-1
925905105*2^(64+1)+1
925905105*2^(64+1)-1
2^64 + 925905105
2^64 - 925905105
2^(64+1) + 925905105
2^(64+1) - 925905105

All are prime!!

Searched for 1 < k < 2^32
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