is 2 1078417 - 1
has 324636 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-L8B05718AA75CDC89double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual271443.314970.4225%2000001000000000.24233.7364%443.557271.5277%1.1051%
PrimeNet2560.008962.5000%4500650000.00032.0191%0.009263.2572%0.7572%
GPU722600.142465.0000%4500200000.00020.6524%0.142765.2283%0.2283%
Difference+11+443.1725+5.4225%+195500+99980000+0.2420+3.0840%+443.4145+6.2993%+0.8768%

Known prime factors (1 factor, 69.9 bits, 0.00648152% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
107841710998822918218237915992269.898509952222480647
509952222480647
2014-04-031509952222480647133.431,194,0392,230,132

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-03-03T00:00:00Jocelyn Larouchev4_computers15000172500---0.001--0.368%
2012-01-03T22:34:00bcp19Toshiba-740Q20000010000000---0.032--2.485%
2012-03-23T03:25:00bcp19Toshiba-740Q200000100000000---0.242--3.736%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-11-24T00:00:00ANONYMOUSv4_computers21257--0.018--
2022-03-07T01:57:40firejugglerManual testing257260--0.125--
2022-03-07T17:30:29LordJuliusManual testing257260--0.125--
2009-02-19T19:18:00Sturle Sundegiasha.ifi260261--0.142--
2010-11-15T21:25:00Michael CManual testing261262--0.285--
2012-10-18T21:47:00dbaughManual testing262263--0.910--
2013-12-23T16:56:00ramgeisManual testing263264--1.821--
2013-12-30T12:30:00lycornManual testing264265--3.465--
2014-02-22T13:29:00Never Odd Or EvenManual testing265266--6.929--
2014-02-22T13:29:00Never Odd Or EvenManual testing266267--13.86--
2014-02-22T13:29:00Never Odd Or EvenManual testing267268--27.72--
2014-02-22T13:29:00Never Odd Or EvenManual testing268269--55.43--
2014-02-22T13:29:00Never Odd Or EvenManual testing269270--110.9--
2014-04-03T13:28:00Never Odd Or EvenManual testing26927069.8982222.730.06546.10
2014-04-01T16:48:00Never Odd Or EvenManual testing270271--221.7--


ECM factoring results:
Total ECM effort:17.588 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
25000025000000447.723


Lucas-Lehmer results:
No L-L results for M1078417


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-28T23:17:38Oliver KruseGTX-0
1099882291821823791599
65A859837416A9__no
2017-10-18T19:53:29kkmrkkblmbrbkc4.xlarge
1099882291821823791599
65A859837416A9__no


P-1 factor-bounds graph:
B1 = 200000, B2 = 100000000 (P-1 stage 2)
B1 = 200000, B2 = 10000000 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 15000, B2 = 172500 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
TF factor-bounds graph:
271
270
269
268
267
266
265
264
263
262
261
260
257
250
260
270
280
290
2100
Last modified: 2022-03-07T17:30:29+00:00