is 2 100981 - 1
has 30399 decimal digits
takes 0.000 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-daysProbabilityProb over default TF
Actual267294.252674.6269%100000000067344391214101,185.314925.4955%1,479.567481.0959%6.4690%
PrimeNet2400.000057.5000%1100190000.00008.0783%0.000060.9333%3.4333%
GPU722440.000061.3636%1200180000.00004.1563%0.000062.9695%1.6059%
Difference+23+294.2525+13.2632%+999998800+6734439103410+1,185.3149+21.3392%+1,479.5674+18.1264%+4.8632%

Known prime factors (3 factors, 200.9 bits, 0.19896188% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10098171406161350331342.69935356236
22 × 3 × 73 × 40361
-73403611.082e-57.308e-61.323e-5
1009815332238085475481211858.8882640218499260
22 × 5 × 76001 × 1736963
2008-08-267600117369630.62390.00050.0006
1009817950662951402629185846302091593099.3273936712327765930811660759
7207957 × 371334269 × 1470809623
2019-10-2237133426914708096231.362e+121.38952.4351

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
100981380754653089836941318360142299331101.587
100981567726321549947067232723051084247297736724743142.026
10098142394827794247994354337288291658870797684744023948158.215
10098130272519138955271799517993182125904924745274655672
87621792887
61200.914
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-10-31T18:44:45kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 7140616135033
skipped known factor: 533223808547548121
--0.656--11.732%
2021-12-18T02:52:31Seth_TrManual testing10000000006734439121410-
skipped known factor: 7140616135033
skipped known factor: 533223808547548121
skipped known factor: 795066295140262918584630209159
--1,185--25.495%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2018-10-25T13:19:55J.R. AllenManual testing252257--0.184--
2022-04-13T17:48:13LordJuliusManual testing2125742.699131.08205e-50.0002.23875e-5
2018-11-02T23:29:50J.R. AllenManual testing257258--0.190--
2022-04-13T17:48:13LordJuliusManual testing257258--0.190--
2022-04-13T17:48:13LordJuliusManual testing25825958.888180.2440.0000.504
2022-04-13T17:48:13LordJuliusManual testing259260--0.760--
2022-04-13T17:48:13LordJuliusManual testing260261--1.521--
2022-04-13T17:48:13LordJuliusManual testing261262--3.042--
2022-11-04T04:11:34LordJuliusManual testing262263--9.72--
2022-11-04T04:11:34LordJuliusManual testing263264--19.44--
2022-11-04T04:11:34LordJuliusManual testing264265--37.00--
2022-11-04T04:11:34LordJuliusManual testing265266--74.00--
2022-11-04T04:11:34LordJuliusManual testing266267--148.0--


ECM factoring results:
Total ECM effort:12.644 GHz-days
Estimated T-Level:30.759
DigitsB1CompleteFacMiss
201100082.6560.000%
255000012.9730.000%
302500001.55021.221%
3510000000.15285.907%
4030000000.01398.739%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002810.652
250000250000005856.791
10000001000000001115.154
100000010000000010.046


Lucas-Lehmer results:
No L-L results for M100981


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T20:56:03Oliver KruseDoppelherz
7140616135033
533223808547548121
18FBB3442F421D__no
2017-09-22T10:00:23Oliver KruseManual testing
7140616135033
533223808547548121
18FBB3442F421D__no
2017-10-13T09:55:35kkmrkkblmbrbkManual testing
7140616135033
533223808547548121
18FBB3442F421D__no
2019-10-23T02:00:27Niels_Mache_NextcloudSuperDry-X
7140616135033
533223808547548121
795066295140262918584630209159
62059328E131A6E0no
2019-10-24T21:20:31krackerGRID-11
7140616135033
533223808547548121
795066295140262918584630209159
62059328E131A6E0no
2022-04-15T06:46:57LordJuliusWhiteBox
7140616135033
533223808547548121
795066295140262918584630209159
62059328E131A6E0no


P-1 factor-bounds graph:
B1 = 1000000000, B2 = 6734439121410 (P-1 stage 2)
B1 = 1000000000 (P-1 stage 1)
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-11-04T04:11:34+00:00