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Re: Huge Cullen prime discovered ??

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  • Jean Penné
    If I submit the posted candidate to LLR, I get immediatly that : 1562533*2^6250134-1 has a small factor : 3 !! So, if this number has really been tested using
    Message 1 of 4 , Nov 14, 2007
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      If I submit the posted candidate to LLR, I get immediatly that :

      1562533*2^6250134-1 has a small factor : 3 !!

      So, if this number has really been tested using LLR (and not a smaller
      one...), a false positive seems to be excluded...

      Jean

      --- In primenumbers@yahoogroups.com, "Paul Underwood"
      <paulunderwood@...> wrote:
      >
      > --- In primenumbers@yahoogroups.com, Jean Penné <jpenne@> wrote:
      > >
      > > Hmmmmm...
      > >
      > > 3 | 1562533*2^6250134-1, but what for 1562533*2^6250134+1 ?
      > >
      > > At first sight, this Cullen candidate has no small divisor...
      > >
      > > Mr Karsten Haesslich, I hope you made a typo while posting this result
      > > to Chris Caldwell !
      > >
      >
      > I guess this is an arithmetical error, and the number should be
      > something like: woodall(3125066). This would fit in with PrimeGrid's
      > current testing window,
      >
      > :-)
      >
      > Paul
      >
    • Jean Penné
      Seeing the second red line on the status page : 5345289*2^5345289-1 1609100 L498 Nov 2007 Woodall I am now almost convinced there are hoaxes... Sorry for him,
      Message 2 of 4 , Nov 14, 2007
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        Seeing the second red line on the status page :

        5345289*2^5345289-1 1609100 L498 Nov 2007 Woodall

        I am now almost convinced there are hoaxes...

        Sorry for him, and for me!

        --- In primenumbers@yahoogroups.com, Jean Penné <jpenne@...> wrote:
        >
        > If I submit the posted candidate to LLR, I get immediatly that :
        >
        > 1562533*2^6250134-1 has a small factor : 3 !!
        >
        > So, if this number has really been tested using LLR (and not a smaller
        > one...), a false positive seems to be excluded...
        >
        > Jean
        >
        > --- In primenumbers@yahoogroups.com, "Paul Underwood"
        > <paulunderwood@> wrote:
        > >
        > > --- In primenumbers@yahoogroups.com, Jean Penné <jpenne@> wrote:
        > > >
        > > > Hmmmmm...
        > > >
        > > > 3 | 1562533*2^6250134-1, but what for 1562533*2^6250134+1 ?
        > > >
        > > > At first sight, this Cullen candidate has no small divisor...
        > > >
        > > > Mr Karsten Haesslich, I hope you made a typo while posting this
        result
        > > > to Chris Caldwell !
        > > >
        > >
        > > I guess this is an arithmetical error, and the number should be
        > > something like: woodall(3125066). This would fit in with PrimeGrid's
        > > current testing window,
        > >
        > > :-)
        > >
        > > Paul
        > >
        >
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