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Viliam Furik 2020-07-07 16:12

k=20020913 tested up to n=500000
 
I have tested k=20020913 and found these primes:

[CODE]20020913*2^12-1
20020913*2^14-1
20020913*2^22-1
20020913*2^62-1
20020913*2^72-1
20020913*2^76-1
20020913*2^78-1
20020913*2^88-1
20020913*2^94-1
20020913*2^112-1
20020913*2^120-1
20020913*2^204-1
20020913*2^462-1
20020913*2^1214-1
20020913*2^1798-1
20020913*2^2022-1
20020913*2^3256-1
20020913*2^6406-1
20020913*2^8548-1
20020913*2^18088-1
20020913*2^62416-1
20020913*2^111300-1
20020913*2^162118-1
20020913*2^230406-1
20020913*2^240084-1
20020913*2^316934-1[/CODE]

Nescro 2020-09-04 07:59

k=3382599
 
I have now searched k=3382599 from n=250k to n=500k.

Primes:
3382599*2^263753-1
3382599*2^273764-1
3382599*2^283188-1
3382599*2^347133-1
3382599*2^376247-1
3382599*2^381211-1
3382599*2^496591-1

Nescro 2020-12-01 05:49

k=8847
 
k=8847 has been checked up to n=500k.

During these tests the following primes were discovered:

[CODE]
8847*2^52260-1
8847*2^53560-1
8847*2^58340-1
8847*2^67918-1
8847*2^127413-1
8847*2^418900-1
[/CODE]


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