is 2 3689809 - 1
has 1110744 decimal digits
takes 0.388 GHz-days to do one PRP test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L82FC05851AE142DEdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27064.759668.5714%300000006000000009.298110.3837%74.057778.9552%15.6218%
PrimeNet2600.041663.3333%160003200000.00503.0822%0.046666.4155%3.0822%
GPU722640.964665.6250%220004500000.00692.1046%0.971567.7296%2.1046%
Difference+6+63.7950+2.9464%+29978000+599550000+9.2912+8.2791%+73.0862+11.2256%+11.2256%

Known prime factors:
No known factors for M3,689,809

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-13T10:17:00Carsten Kossendeydurandal20000260000---0.005--0.723%
2012-03-23T06:38:00Squeeky_SquirrelP4_2600900001665000---0.027--1.887%
2016-07-09T02:37:06Jocelyn LaroucheManual testing9000033300006---0.041--2.223%
2016-12-26T21:22:48Jocelyn Larouche low 4MManual testing108000108000---0.016--0.696%
2016-12-29T20:13:43Jocelyn Larouche low 4MManual testing129600129600---0.020--0.776%
2017-01-19T17:19:09Jocelyn Larouche low 4MManual testing155520155520---0.024--0.862%
2017-02-04T18:42:37Jocelyn Larouche low 4MManual testing186624186624---0.028--0.954%
2017-02-08T21:16:25Jocelyn Larouche low 4MManual testing22394822394806---0.051--2.407%
2018-01-07T20:17:55Jocelyn Larouche low 4MManual testing36898093689809---0.562--3.335%
2018-01-15T23:51:02Jocelyn Larouche low 4MManual testing368980973796186---0.593--4.107%
2018-03-28T09:23:27Jocelyn Larouche low 4MManual testing368980973796186---0.593--4.107%
2018-06-29T09:34:17Jocelyn Larouche low 4MManual testing36998091106942712---0.625--4.562%
2020-11-21T02:36:25axnManual testing3000000060000000012---9.298--10.384%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-08-30T00:00:00ANONYMOUSv4_computers?260--0.021--
2009-03-08T06:43:00S485122USB-Z260261--0.042--
2011-05-20T15:34:00Grant McCrackenthumper261262--0.083--
2012-06-05T02:32:00GrunwalderGIMPManual testing21263--0.433--
2016-02-23T16:29:36Mark RoseManual testing262263--0.266--
2015-01-25T20:42:00VictordeHollanderManual testing263264--0.532--
2015-01-25T20:42:00VictordeHollanderManual testing264265--1.013--
2015-10-20T08:54:42ramgeisManual testing265266--2.025--
2017-01-05T14:31:29Gordon SpenceManual testing266267--4.050--
2018-07-30T10:36:13TJAOIManual testing267268--8.101--
2020-10-29T01:52:48axnManual testing268269--16.20--
2020-10-29T01:52:48axnManual testing269270--32.40--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
500005000000121.788


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-09-20T00:00:00ANONYMOUSv4_computers82FC05851AE142DE0.388
2000-02-01T00:00:00ANONYMOUSv4_computers82FC05851AE142DE0.388


PRP results:
Exponent "3689809" not found


P-1 factor-bounds graph:
B1 = 30000000, B2 = 600000000 (stage 2)
B1 = 30000000 (stage 1)
B1 = 3699809, B2 = 11069427 (stage 2)
B1 = 3689809, B2 = 7379618 (stage 2)
B1 = 3699809 (stage 1)
B1 = 3689809 (stage 1)
B1 = 223948, B2 = 2239480 (stage 2)
B1 = 90000, B2 = 3330000 (stage 2)
B1 = 223948 (stage 1)
B1 = 186624 (stage 1)
B1 = 90000, B2 = 1665000 (stage 2)
B1 = 155520 (stage 1)
B1 = 129600 (stage 1)
B1 = 108000 (stage 1)
B1 = 90000 (stage 1)
B1 = 20000, B2 = 260000 (stage 2)
B1 = 20000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-11-21T02:36:25+00:00