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#496 |
Jun 2006
Chertsey Surrey UK
16616 Posts |
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1815*2^627840-1 Already in Database
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#497 |
Apr 2009
22×3 Posts |
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1793*2^628976-1, It appears to be 189344 digits long - submitted
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#498 |
Jun 2006
Chertsey Surrey UK
2·179 Posts |
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1841*2^629982-1 New Prime
1881*2^629917-1 New Prime |
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#499 |
May 2007
Kansas; USA
23×3×431 Posts |
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LaurenU2 found:
1975*2^630413-1 is prime |
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#500 |
May 2007
Kansas; USA
101000011010002 Posts |
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LaurenU2 found:
1485*2^630611-1 is prime 1965*2^630845-1 is prime |
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#501 |
May 2007
Kansas; USA
23·3·431 Posts |
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LaurenU2 found:
1637*2^632272-1 is prime Fozzie found: 1801*2^634053-1 is prime LaurenU2 found: 1733*2^637904-1 is prime LaurenU2 found: 1763*2^640656-1 is prime Last fiddled with by mdettweiler on 2009-09-21 at 02:36 Reason: merged (cleanup) |
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#502 |
"Lennart"
Jun 2007
25·5·7 Posts |
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1495*2^635021-1 New
1539*2^635844-1 is Prime (New) 2535*2^426158-1 is Prime 2579*2^428252-1 is Prime Last fiddled with by mdettweiler on 2009-09-21 at 02:37 Reason: merged (cleanup) |
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#503 |
Jun 2006
Chertsey Surrey UK
2×179 Posts |
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1995*2^636339-1 New Prime
1741*2^637157-1 New Prime 1455*2^645453-1 New Prime 1509*2^650501-1 New Prime 1877*2^651256-1 New Prime Last fiddled with by mdettweiler on 2009-09-21 at 02:38 Reason: merged (cleanup) |
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#504 |
May 2007
Minnesota USA
72 Posts |
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1975*2^637595-1 is prime
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#505 |
Apr 2009
C16 Posts |
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1863*2^644951-1, It appears to be 194153 digits long - submitted
1851*2^656958-1 is Prime! It appears to be 197768 digits long- submitted Last fiddled with by mdettweiler on 2009-09-21 at 02:38 Reason: merged (cleanup) |
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#506 |
May 2007
Kansas; USA
23·3·431 Posts |
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LaurenU2 found:
1785*2^646070-1 is prime The 72nd prime for the very prolific k=1785. Edit: k=1455 that Brian just found a prime for is even more prolific; now with 78 primes. LaurenU2 found a nice pair: 1627*2^647673-1 is prime 1431*2^647763-1 is prime LaurenU2 went on one of his patented runs: 1575*2^648997-1 is confirmed prime 1757*2^649008-1 is prime 1877*2^649526-1 is prime 1791*2^649689-1 is prime 1985*2^649728-1 is prime That's amazing for such a large n-range! ![]() Fozzie found: 1745*2^650260-1 is prime LaurenU2 found: 1991*2^654810-1 is prime 1559*2^655252-1 is prime LaurenU2 found: 1635*2^656285-1 is prime LaurenU2 found: 1793*2^656912-1 is prime Fozzie found: 1505*2^657540-1 is prime LaurenU2 found: 1815*2^659158-1 is confirmed prime 1495*2^659159-1 is prime LaurenU2 found: 1617*2^660752-1 is prime Helix-Von-Smelix found: 1573*2^662203-1 is prime The prime was reported incorrectly at top-5000. I am in the process of getting it corrected. I confirmed my own prime: ![]() 2145*2^425089-1 is confirmed prime 2507*2^425734-1 is prime 2425*2^426537-1 is prime 2477*2^427220-1 is prime 2183*2^427880-1 is prime 2565*2^427924-1 is confirmed prime 2569*2^428333-1 is prime Last fiddled with by mdettweiler on 2009-09-21 at 02:40 Reason: merged (cleanup) |
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