is 2 108613651 - 1
has 32695967 decimal digits
takes 476.693 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
Actual277281.807764.9351%7590002194900012.17723.5949%293.985066.1956%1.2606%
PrimeNet2728.804962.5000%4500002400000011.02915.4992%19.834064.5622%2.0622%
GPU72276140.903064.4737%7000002400000012.53343.9820%153.436465.8883%1.4146%
Difference+1+140.9047+0.4614%+59000-2051000-0.3561-0.3870%+140.5486+0.3073%+0.3073%

Known prime factors (1 factor, 104.2 bits, 0.00009593% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1086136512318841474564943310083631309469732104.193106747239100034640677148
22 × 32 × 281 × 439 × 1847 × 9161 × 1420605631
2022-01-18916114206056311.227e+9492.61919.96

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-01-18T18:49:08Sturle Sundeginger759000219490001232104.19312.18953.424.353.595%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-27T14:35:00lindedskynet-node056263264--0.018--
2010-09-11T10:12:00I2NM2I2NM2-C264265--0.034--
2012-05-23T00:28:00Donna NobleOpt6128x4x4265266--0.069--
2013-09-25T20:49:00PascalBieriManual testing266267--0.138--
2013-09-29T06:56:00PascalBieriManual testing267268--0.275--
2013-10-02T11:38:00CSLatDDtmsm7-32268269--0.550--
2013-10-06T07:16:00CSLatDDtmsm7-32269270--1.101--
2013-10-09T23:16:00CSLatDDtmsm7-32270271--2.202--
2019-01-25T10:41:54Niels_Mache_NextcloudManual testing271272--4.403--
2019-09-16T08:09:18Niels_Mache_NextcloudManual testing272273--8.807--
2019-09-16T08:09:18Niels_Mache_NextcloudManual testing273274--17.61--
2021-04-26T21:13:22TheJudgerManual testing274275--35.23--
2021-04-26T21:13:22TheJudgerManual testing275276--70.45--
2021-12-11T12:32:08Amy PondManual testing276277--140.9--


ECM factoring results:
No ECM results for M108613651


Lucas-Lehmer results:
No L-L results for M108613651


PRP results:
No PRP results for M108613651


P-1 factor-bounds graph:
B1 = 759000, B2 = 21949000 (P-1 stage 2)
B1 = 759000 (P-1 stage 1)
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1010
TF factor-bounds graph:
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Last modified: 2022-01-18T18:49:08+00:00