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Unregistered

2008-09-07 15:50

False Prime

Has GIMPS ever had a "false prime", one that they thought was prime but proven composite
during the verification process?

nuggetprime

2008-09-07 16:07

Yes, once a computer claimed to have found M40, was proven composite during verification. See thread "M40,what went wrong?"

--nugget

henryzz

2008-09-07 16:29

[URL]http://mersenneforum.org/showthread.php?t=672[/URL]

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