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Old 2004-06-14, 21:59   #12
robert44444uk
 
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Jun 2003
Oxford, UK

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Default Fat Phil rools OK?

My mate Phil Carmody has run our really prime number from 173,000 to 185,000 and found two primes. This makes now an impossibly rich 166 primes for this k*2^n+1 sequence.

It is interesting that since n got larger than 100,000, there are no fewer than 20 primes discovered up to n=260,000. Here they are:

104186
105283
107911
122428
123760
125392
126478
129152
129850
137749
172113
174521
184521
202474
206409
214727
226714
231290
240057
243709

I wonder how many there are before n=1 million?

Regards

Robert Smith
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