is 2 107157527 - 1
has 32257630 decimal digits
takes 439.495 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
Actual276142.817764.4737%8510003991300017.71744.4701%160.535166.0617%1.5881%
PrimeNet2728.924662.5000%450000220000009.65865.4090%18.583164.5284%2.0284%
GPU72276142.817764.4737%7000002400000011.71233.9755%154.530165.8860%1.4123%
Difference---+151000+15913000+6.0050+0.4946%+6.0050+0.1757%+0.1757%

Known prime factors (1 factor, 116.2 bits, 0.00010846% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1071575279708638471880997703743838563756012735116.225453007770134570094350154169
37 × 109 × 479 × 1433 × 17471 × 422069 × 22191901
2021-10-30422069221919011.228e+99.56413.430

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-10-30T18:22:51mikrNitron8510003991300035116.22517.72879.035.434.470%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-24T12:14:00sasaki3HOME263264--0.018--
2010-09-07T13:15:00sasaki3HOME264265--0.035--
2012-05-19T01:30:00omiXorpLLB03-z800-09265266--0.070--
2014-07-02T10:28:00PgaborManual testing266267--0.139--
2014-08-17T05:56:00roemer2201HPCC-AMD267268--0.279--
2014-11-01T06:53:00shaugeManual testing268269--0.558--
2014-11-01T06:53:00shaugeManual testing269270--1.116--
2014-11-01T06:53:00shaugeManual testing270271--2.232--
2015-01-19T03:08:00SMoffatManual testing271272--4.463--
2020-03-28T07:57:39SRBaseManual testing272273--8.926--
2020-06-16T14:55:11XZTManual testing273274--17.85--
2021-04-10T18:03:06TheJudgerManual testing274275--35.70--
2021-04-10T18:03:06TheJudgerManual testing275276--71.41--


ECM factoring results:
No ECM results for M107157527


Lucas-Lehmer results:
No L-L results for M107157527


PRP results:
No PRP results for M107157527


P-1 factor-bounds graph:
B1 = 851000, B2 = 39913000 (P-1 stage 2)
B1 = 851000 (P-1 stage 1)
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108
TF factor-bounds graph:
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Last modified: 2021-10-30T18:23:32+00:00