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#969 |
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I quite division it
"Chris"
Feb 2005
England
40358 Posts |
855*2^785632-1 is prime.
edit: I can't believe my first ever reportable prime (27*2^627794-1) is now off the list. Found nearly 6 years ago at position 198. I still haven't found a higher placed one. Last fiddled with by Flatlander on 2011-02-19 at 15:04 Reason: Nostalgia. |
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#970 |
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I quite division it
"Chris"
Feb 2005
England
31·67 Posts |
805*2^789495-1 is prime.
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#971 |
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Just call me Henry
"David"
Sep 2007
Cambridge (GMT/BST)
23×3×5×72 Posts |
951*2^800305-1 is prime
Having a really good time with primes this year. |
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#972 |
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I quite division it
"Chris"
Feb 2005
England
31×67 Posts |
851*2^801966-1 is prime.
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#973 |
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Mar 2006
Germany
B5816 Posts |
819*2^796381-1 is prime
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#974 |
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May 2007
Kansas; USA
101000100110112 Posts |
Ototero found 913*2^796423-1 is prime.
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#975 |
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I quite division it
"Chris"
Feb 2005
England
31×67 Posts |
979*2^803865-1 is prime.
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#976 |
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Mar 2006
Germany
B5816 Posts |
983*2^799052-1 is prime
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#977 |
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I quite division it
"Chris"
Feb 2005
England
31·67 Posts |
949*2^806651-1 is prime.
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#978 |
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Mar 2009
2728 Posts |
313*2^1137387-1 is prime.
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#979 |
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Mar 2006
Germany
23·3·112 Posts |
987*2^812548-1 is prime
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