mersenneforum.org - reasons why a LL test would be redundant

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William Labbett

2011-10-10 19:29

reasons why a LL test would be redundant

Hi,

I've been doing a LL on this exponent now for over 5 month but the

prime95 program says it's a redundant effort.

67871197

I know it's prime so I can't work out why it would be redundant. Would it be because it's already been tested ?

Mini-Geek

2011-10-10 20:00

[URL="http://www.mersenne.org/report_exponent/?exp_lo=67871197"]That number[/URL] has a known factor. That's why it's redundant.

William Labbett

2011-10-11 11:03

Right, thanks. I didn't realise there was a way to check.

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