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Old 2017-12-31, 05:00   #196
ATH
Einyen
 
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Dec 2003
Denmark

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Btw the corresponding Perfect number +1 has small factors:
2p-1*(2p-1)+1

and the corresponding Wagstaff number has a factor (NMC):
2p+1 / 3

Still no factor of 2p - 3 (twin prime)
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