is 2 108977797 - 1
has 32805586 decimal digits
takes 478.291 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual277280.866164.9351%7610002231400012.31583.6091%293.181968.5442%6.0442%
PrimeNet2728.775562.5000%4500002400000011.02915.5014%19.804568.0014%5.5014%
GPU72276140.432264.4737%7000002400000012.53343.9836%152.965668.4572%3.9836%
Difference+1+140.4338+0.4614%+61000-1686000-0.2175-0.3744%+140.2163+0.0870%+0.0870%

Known prime factors (1 factor, 87.2 bits, 0.00008002% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1089777971781411760872478217007358412787.203817327845631013360
24 × 5 × 72 × 59 × 151 × 449 × 52123663
449521236632021-03-12557,78618.07533.754

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-03-12T09:39:24tscManual testing76100022314000122787.20312.32956.624.633.609%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-06-27T04:39:00Charles A. Morrismagnetar263264--0.018--
2010-09-16T13:36:00Donna NobleRuth-Lappy264265--0.034--
2012-05-24T01:30:00sannerud.comJarrett2012265266--0.069--
2014-07-24T07:59:00g0bManual testing266267--0.137--
2014-07-25T07:56:00g0bManual testing267268--0.274--
2014-09-08T07:41:00g0bManual testing268269--0.549--
2014-10-31T02:38:00bunddogManual testing269270--1.097--
2014-11-04T05:50:00SWL551Manual testing270271--2.194--
2019-01-20T11:17:31Niels_Mache_NextcloudManual testing271272--4.389--
2019-07-22T07:09:22Niels_Mache_NextcloudManual testing272273--8.777--
2019-07-22T07:09:22Niels_Mache_NextcloudManual testing273274--17.55--
2020-01-29T14:18:09LaurVManual testing274275--35.11--
2020-02-10T18:36:56La GüiraManual testing275276--70.22--
2020-05-03T17:10:21TheJudgerManual testing276277--140.4--


ECM factoring results:
Exponent "108977797" not found


Lucas-Lehmer results:
Exponent "108977797" not found


PRP results:
Exponent "108977797" not found


P-1 factor-bounds graph:
B1 = 761000, B2 = 22314000 (stage 2)
B1 = 761000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2021-03-12T09:39:24+00:00