is 2 107072711 - 1
has 32232098 decimal digits
takes 439.147 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP4C6C01399885E1__verified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276142.930964.4737%7870002307600011.90224.0051%154.833065.8965%1.4229%
PrimeNet2728.931662.5000%450000220000009.65865.4085%18.590264.5282%2.0282%
GPU72276142.930964.4737%7000002400000011.71233.9751%154.643265.8859%1.4122%
Difference---+87000-924000+0.1898+0.0300%+0.1898+0.0107%+0.0107%

Known prime factors:
No known factors for M107072711

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-10-28T10:48:11tottenhoffi3-8100-01787000230760006---11.90--4.005%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-24T10:08:00lindedskynet-backup263264--0.018--
2010-09-06T23:19:00Donna NoblePH9500264265--0.035--
2012-05-17T11:03:00Thomas StorkDeeppurple265266--0.070--
2013-10-07T06:19:00ANONYMOUS266267--0.140--
2014-10-26T23:31:00S00030vd06267268--0.279--
2014-11-01T14:50:00MarzbugXeon268269--0.558--
2014-11-07T21:52:00MarzbugXeon269270--1.117--
2015-01-11T00:08:00ANONYMOUS270271--2.233--
2018-02-13T17:57:45el groccoManual testing271272--4.467--
2020-03-20T20:45:10srow7Manual testing272273--8.933--
2020-03-20T20:45:10srow7Manual testing273274--17.87--
2021-04-08T18:21:45TheJudgerManual testing274275--35.73--
2021-04-08T18:21:45TheJudgerManual testing275276--71.47--


ECM factoring results:
No ECM results for M107072711


Lucas-Lehmer results:
No L-L results for M107072711


PRP results:
dateuseridcompidcofactorsres64PRP
2021-10-29T22:07:11Ben Deloi-02a9016fe494497214C6C01399885E1__no


P-1 factor-bounds graph:
B1 = 787000, B2 = 23076000 (P-1 stage 2)
B1 = 787000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-10-29T22:07:11+00:00