is 2 108164789 - 1
has 32560846 decimal digits
takes 443.626 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
Actual276141.487864.4737%7930002386100012.19024.0392%153.678065.9087%1.4350%
PrimeNet2728.841562.5000%4500002400000010.30665.4965%19.148064.5612%2.0612%
GPU72276141.487864.4737%7000002400000011.71233.9800%153.200165.8876%1.4139%
Difference---+93000-139000+0.4779+0.0593%+0.4779+0.0211%+0.0211%

Known prime factors (1 factor, 82.4 bits, 0.00007621% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10816478965039966064863726612311992582.42830065221162158291
32 × 347 × 45233 × 212832049
2021-12-214523321283204916,21169.214128.80

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-12-21T19:50:46tottenhoffi7-8700k-0179300023861000122582.42812.19887.324.384.039%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-26T10:20:00KYOJI_KAMEIlinux-samprom263264--0.018--
2010-09-10T00:09:00oilwarzonedotcomsendtofriendapi264265--0.035--
2012-05-22T23:21:00omiXorpLLB03-z800-09265266--0.069--
2013-09-24T02:30:00SMoffatManual testing266267--0.138--
2013-09-27T09:18:00ANONYMOUS267268--0.276--
2013-10-03T05:23:00ANONYMOUS268269--0.553--
2015-01-26T14:29:00Brandon VincentManual testing269270--1.105--
2015-01-29T23:04:00Brandon VincentManual testing270271--2.211--
2019-01-20T11:16:56Niels_Mache_NextcloudManual testing271272--4.422--
2019-11-18T12:02:13Niels_Mache_NextcloudManual testing272273--8.843--
2019-11-18T12:02:13Niels_Mache_NextcloudManual testing273274--17.69--
2021-04-17T22:06:44TheJudgerManual testing274275--35.37--
2021-04-17T22:06:44TheJudgerManual testing275276--70.74--


ECM factoring results:
No ECM results for M108164789


Lucas-Lehmer results:
No L-L results for M108164789


PRP results:
No PRP results for M108164789


P-1 factor-bounds graph:
B1 = 793000, B2 = 23861000 (P-1 stage 2)
B1 = 793000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-12-21T19:50:46+00:00