is 2 107934373 - 1
has 32491484 decimal digits
takes 442.681 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-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual277283.581364.9351%8500001700000010.28773.4639%293.869066.1497%
Target276141.789864.4737%70000019200000066.14603.9789%207.935865.8873%
Difference+1+141.7914+0.4614%+150000-175000000-55.8583-0.5151%+85.9332+0.2624%

Known prime factors (1 factor, 123.0 bits, 0.00011392% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1079343731034295833141748393487220484783330880138122.96047913181148592413349509172800
26 × 52 × 7 × 8647 × 11083 × 22961 × 510403 × 3808993		2020-09-0851040338089931.316e+94.10416.1775

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-09-08LOBESLOBES_GL85000017000000638122.96010.29885.420.583.464%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-30RichardFX5000_1263264--0.018--
2010-09-09Mr-Plonklinux-i7-920264265--0.035--
2012-05-20omiXorpLLB03-z800-16265266--0.069--
2013-09-22shengManual testing266267--0.138--
2013-09-27SMoffatManual testing267268--0.277--
2014-10-31shaugeManual testing268269--0.554--
2014-10-31shaugeManual testing269270--1.108--
2014-10-31shaugeManual testing270271--2.215--
2015-02-15workerthreadManual testing271272--4.431--
2020-01-26Niels_Mache_NextcloudManual testing272273--8.862--
2020-01-28David HruskaManual testing272273--8.862--
2020-01-26Niels_Mache_NextcloudManual testing273274--17.72--
2020-02-06LaurVManual testing274275--35.45--
2020-09-04Christian R. Mueller-HirschkornGPU72_TF275276--70.90--
2020-09-04RichD0GPU72_TF276277--141.8--


ECM factoring results:
No ECM results for M107934373


Lucas-Lehmer results:
No L-L results for M107934373


PRP results:
No PRP results for M107934373


P-1 factor-bounds graph:
B1 = 850000, B2 = 17000000 (P-1 stage 2)
B1 = 850000 (P-1 stage 1)
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108
TF factor-bounds graph:
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275
274
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270
269
268
267
266
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264
this exponent TF target: 76
TF double-checked to: 67.9
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Last modified: 2023-07-11T14:45:05+00:00