is 2 3651793 - 1
has 1099300 decimal digits
takes 0.384 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-
PRP00D1B46BABA71FFBverified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27065.433868.5714%300000006000000009.298110.3751%74.731971.8322%3.2607%
PrimeNet2600.042163.3333%160003200000.00503.0766%0.047064.4614%1.1281%
GPU722640.974765.6250%220004000000.00652.0364%0.981266.3250%0.7000%
Difference+6+64.4591+2.9464%+29978000+599600000+9.2916+8.3387%+73.7507+5.5072%+5.5072%

Known prime factors (1 factor, 80.5 bits, 0.00220451% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
365179317146048091985872535790312580.504234762048286771355
5 × 7 × 6707487093907753
2021-11-1976707487093907753122,42455,653,325103,944,912

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-07T09:57:00Carsten Kossendeyleela20000250000---0.005--0.713%
2012-01-29T21:27:00Squeeky_SquirrelP4_2600900001642500---0.027--1.877%
2016-06-13T00:04:28Jocelyn LaroucheManual testing10800032850006---0.043--2.305%
2016-12-29T20:13:46Jocelyn Larouchelow 4M129600129600---0.020--0.775%
2017-01-30T01:30:52Jocelyn Larouchelow 4M167520167520---0.026--0.897%
2017-03-06T06:09:56Squeeky_SquirrelP4_2600230000678500012---0.089--3.121%
2017-03-07T20:00:41Jocelyn Larouchelow 4M24122824122806---0.055--2.477%
2020-09-07T11:12:57axnManual testing3000000060000000012---9.298--10.375%
2022-03-04T04:19:05Jocelyn LaroucheManual testing9000090000---0.014--0.621%
2022-03-22T17:33:29Jocelyn LaroucheManual testing100000100000---0.015--0.663%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-02-23T16:29:35Mark RoseManual testing21260--0.042--
2009-03-10T05:59:00S485122USB-A260261--0.042--
2011-05-15T12:24:00markroldgamer261262--0.084--
2012-06-05T02:30:00GrunwalderGIMPManual testing21263--0.437--
2016-02-23T16:29:35Mark RoseManual testing262263--0.269--
2015-01-22T10:40:00VictordeHollanderManual testing263264--0.538--
2015-01-22T10:40:00VictordeHollanderManual testing264265--1.023--
2015-10-20T08:54:36ramgeisManual testing265266--2.046--
2016-12-28T15:57:36Gordon SpenceManual testing266267--4.093--
2019-02-11T13:34:43TJAOIManual testing267268--8.185--
2020-11-08T02:44:54axnManual testing268269--16.37--
2020-11-18T02:02:37axnManual testing269270--32.74--


ECM factoring results:

Old Calculation Method

Total ECM effort:5.054 GHz-days
Estimated T-Level:1.700
DigitsB1CurvesCompleteFacMiss
201100034 / 1000.34071.055%
255000034 / 2800.12188.546%

New Calculation Method

Total ECM effort:5.054 GHz-days
Estimated T-Level:1.700
DigitsB1CompleteFacMiss
20110001.09733.395%
25500000.09990.563%
302500000.00699.391%


ECM Summary

B1B2factorcurvesGHz-days
500005000000294.311
50000500000050.743


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-08-22T00:00:00Charlie Dorianv4_computers6AEFC0C69586F4__0.384


PRP results:
dateuseridcompidcofactorsres64PRP
2021-11-20T01:38:37Aaron Havilandflash
1714604809198587253579031
00D1B46BABA71FFBno


P-1 factor-bounds graph:
B1 = 30000000, B2 = 600000000 (P-1 stage 2)
B1 = 30000000 (P-1 stage 1)
B1 = 230000, B2 = 6785000 (P-1 stage 2)
B1 = 241228, B2 = 2412280 (P-1 stage 2)
B1 = 108000, B2 = 3285000 (P-1 stage 2)
B1 = 241228 (P-1 stage 1)
B1 = 230000 (P-1 stage 1)
B1 = 90000, B2 = 1642500 (P-1 stage 2)
B1 = 167520 (P-1 stage 1)
B1 = 129600 (P-1 stage 1)
B1 = 108000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 20000, B2 = 250000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-22T17:33:29+00:00