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Old 2014-05-18, 15:07   #2
Trilo
 
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"W. Byerly"
Aug 2013
1423*2^2179023-1

2·47 Posts
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4207 tested up to 310k with

26065
173153

as prime n's.

4329 tested up to 160k with the following prime n:

37045
46787
59620
65896
71785
91267
103503
132735
151504

4347 tested up to 160k with the following prime n:

20468
20750
24745
27278
28982
31585
33250
51002
111125

4431 tested up to 160k with the following n as prime:

21441
22417
31963
31969
50089
53511
76069
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