is 2 109156277 - 1
has 32859314 decimal digits
takes 479.075 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276140.202664.4737%9150005357100024.08004.7557%164.282666.1632%1.6895%
PrimeNet2728.761162.5000%4500002400000011.02915.5024%19.790264.5634%2.0634%
GPU72276140.202664.4737%7000002400000012.53343.9843%152.736065.8892%1.4155%
Difference---+215000+29571000+11.5466+0.7713%+11.5466+0.2740%+0.2740%

Known prime factors (1 factor, 126.4 bits, 0.00011582% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10915627711432020656062702459950108350685756096139126.426523653836969114586967367362240
26 × 5 × 13 × 47 × 157 × 383 × 691 × 69761 × 773879 × 1193963
2021-12-2577387911939631.678e+95.070510.023

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-12-25T08:45:46Ben Deloi-077f37f96335610bf9150005357100039126.42624.08958.148.164.756%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-28T10:26:00zygC7B2E83D4263264--0.018--
2010-09-13T12:28:00Donna NoblePH9500264265--0.034--
2012-05-24T18:40:00omiXorpLLB14-990-07265266--0.068--
2013-09-29T06:56:00PascalBieriManual testing266267--0.137--
2013-09-29T20:41:00ANONYMOUSManual testing267268--0.274--
2013-10-12T06:33:00Cow_tippingManual testing268269--0.548--
2014-07-23T05:18:00plandonDaves269270--1.095--
2014-07-30T19:07:00ANONYMOUS270271--2.191--
2015-02-01T22:17:00wahbapManual testing271272--4.381--
2020-03-02T16:51:38Jan S.Manual testing272273--8.763--
2020-07-27T23:49:32gcardonaManual testing273274--17.53--
2021-04-26T20:51:12TheJudgerManual testing274275--35.05--
2021-04-26T20:51:12TheJudgerManual testing275276--70.10--


ECM factoring results:
No ECM results for M109156277


Lucas-Lehmer results:
No L-L results for M109156277


PRP results:
No PRP results for M109156277


P-1 factor-bounds graph:
B1 = 915000, B2 = 53571000 (P-1 stage 2)
B1 = 915000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-12-25T08:45:46+00:00