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683*2^670454-1 is prime
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607*2^670861-1 is prime
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Added 88284 : 563*2^683292-1 (205695 digits)
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Added 88285 : 543*2^683355-1 (205714 digits)
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A nice pair David. One for me too:
605*2^672972-1 is prime |
Added 88290 : 513*2^683547-1 (205771 digits)
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909*2^683019-1 is prime
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Added 88309 : 651*2^674785-1 (203134 digits)
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709*2^675411-1 is prime
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from the 6 k's:
333*2^832611-1 is prime! |
Added 88326 : 481*2^684665-1 (206108 digits)
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