is 2 1077337 - 1
has 324311 decimal digits
takes 0.032 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L6401386A6AA076A2double-checked
PRPE5FA3DFC95FAF29EPRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual271443.759370.4225%2700000069007544760162.676414.6923%606.435774.7681%4.3456%
PrimeNet2560.008962.5000%4500650000.00032.0187%0.009263.2570%0.7570%
GPU722600.142665.0000%4500200000.00020.6522%0.142865.2283%0.2283%
Difference+11+443.6167+5.4225%+26995500+69007524760+162.6762+14.0401%+606.2929+9.5399%+4.1173%

Known prime factors (1 factor, 126.1 bits, 0.01170330% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10773379016974801366480019571962370218266663138126.08441848441116226770358634124559995
32 × 5 × 7 × 97 × 31601 × 1329907 × 8995111 × 3623000317
2022-04-13899511136230003171.503e+118.848715.844

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-03-03T00:00:00Jocelyn Larouchev4_computers15000168750---0.001--0.365%
2012-01-03T17:18:00bcp19Toshiba-740Q20000010000000---0.032--2.484%
2012-01-31T16:42:00bcp19Toshiba-740Q200000100000000---0.242--3.736%
2014-08-21T02:33:00Jocelyn LaroucheManual testing259576259576---0.011--0.808%
2014-11-06T23:05:00Jocelyn LaroucheManual testing319152319152---0.014--0.904%
2016-05-15T21:03:06Jocelyn LaroucheManual testing9769995000000012---0.157--4.403%
2016-07-20T19:45:16Bruno Victal5820K-factoring25000006250000012---0.248--5.096%
2016-07-27T11:35:27Bruno VictalManual testing25000006250000012---0.248--5.096%
2018-04-05T11:51:25Jocelyn Larouchelow 4M107733710773370012---0.296--5.070%
2022-04-13T06:40:58axnManual testing270000006900754476038126.084162.70.064325.414.692%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-11-24T00:00:00ANONYMOUSv4_computers21257--0.018--
2016-02-23T16:28:20Mark RoseManual testing257260--0.125--
2009-02-17T04:30:00Sturle Sundegiasha.ifi260261--0.143--
2010-11-15T21:25:00Michael CManual testing261262--0.285--
2012-10-13T12:00:00dbaughManual testing262263--0.911--
2013-12-18T16:39:00ramgeisManual testing263264--1.822--
2013-12-30T01:50:00lycornManual testing264265--3.468--
2014-02-22T13:29:00Never Odd Or EvenManual testing265266--6.936--
2014-02-22T13:29:00Never Odd Or EvenManual testing266267--13.87--
2014-02-22T13:29:00Never Odd Or EvenManual testing267268--27.75--
2014-02-22T13:29:00Never Odd Or EvenManual testing268269--55.49--
2014-02-22T13:29:00Never Odd Or EvenManual testing269270--111.0--
2014-04-01T16:48:00Never Odd Or EvenManual testing270271--222.0--


ECM factoring results:
Total ECM effort:17.585 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002819.86
25000025000000447.722


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-11-11T15:34:15MadPooManual testing6401386A6AA076A20.032


PRP results:
dateuseridcompidcofactorsres64PRP
2022-04-13T18:02:44SRJ2877LTOS
90169748013664800195719623702182666631
E5FA3DFC95FAF29Eno


P-1 factor-bounds graph:
B1 = 27000000, B2 = 69007544760 (P-1 stage 2)
B1 = 27000000 (P-1 stage 1)
B1 = 1077337, B2 = 107733700 (P-1 stage 2)
B1 = 2500000, B2 = 62500000 (P-1 stage 2)
B1 = 200000, B2 = 100000000 (P-1 stage 2)
B1 = 976999, B2 = 50000000 (P-1 stage 2)
B1 = 2500000 (P-1 stage 1)
B1 = 1077337 (P-1 stage 1)
B1 = 976999 (P-1 stage 1)
B1 = 200000, B2 = 10000000 (P-1 stage 2)
B1 = 319152 (P-1 stage 1)
B1 = 259576 (P-1 stage 1)
B1 = 200000 (P-1 stage 1)
B1 = 15000, B2 = 168750 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
103
104
105
106
107
108
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
271
270
269
268
267
266
265
264
263
262
261
260
257
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2022-04-13T18:02:44+00:00