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Old 2016-05-09, 09:21   #1
NBtarheel_33
 
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"Nathan"
Jul 2008
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Default Question on P-1 bounds

I have been going through some old, partially-completed GIMPS assignments on my computer, and I came across some P-1 work on 85000303. It appears that another user has already completed P-1 factoring on this exponent with the bounds B1 = 965,000, B2 = 28,708,750, and E = 6. The bounds with which I had been working were B1 = 745,000 and B2 = 14,341,250. My guess is that the existing result, having a bigger B1 and B2 plus Brent-Suyama, supersedes the work I have and therefore there is no purpose in continuing to process this P-1, right?
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Old 2016-05-09, 13:10   #2
axn
 
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Quote:
Originally Posted by NBtarheel_33 View Post
My guess is that the existing result, having a bigger B1 and B2 plus Brent-Suyama, supersedes the work I have and therefore there is no purpose in continuing to process this P-1, right?
Correct. Though, if you also have a B-S value (E>2), there is a small probability the you can find a factor that the previous run didn't.
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