is 2 3049391 - 1
has 917959 decimal digits
takes 0.260 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26939.151068.1159%30493913248553002.54018.8099%41.691170.9249%2.8090%
PrimeNet2600.050463.3333%120002200000.00292.5227%0.053264.2583%0.9250%
GPU722641.167265.6250%140002200000.00311.4649%1.170366.1286%0.5036%
Difference+5+37.9838+2.4909%+3035391+324635300+2.5370+7.3450%+40.5208+4.7963%+4.7963%

Known prime factors (2 factors, 95.9 bits, 0.00314589% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
30493916098783722.5401
1
-111.833e-131.234e-72.512e-7
3049391123808376420177467686492373.3912030050859666364
22 × 33 × 157 × 10369 × 11546401
2021-12-0510369115464011,086.80.07880.1450

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3049391755080421368979196909414541672995.931
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-09-07T14:32:34Jocelyn LaroucheManual testing47775560987826-
skipped known factor: 6098783
--0.097--3.669%
2021-12-05T02:24:31Jocelyn LaroucheManual testing30493913049391122373.3910.3760.5190.7533.377%
2021-12-18T19:15:25Jocelyn LaroucheManual testing3049391218017800-
skipped known factor: 6098783
skipped known factor: 12380837642017746768649
--1.822--8.337%
2022-08-18T11:03:39Jocelyn LaroucheManual testing3049391324855300-
skipped known factor: 6098783
skipped known factor: 12380837642017746768649
--2.540--8.810%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2021-01-16T21:12:29Jocelyn LaroucheManual testing265266--2.451--
2021-02-21T11:36:41Jocelyn LaroucheManual testing266267--4.901--
2021-03-22T10:48:50Jocelyn LaroucheManual testing267268--9.80--
2021-11-29T20:04:03Jocelyn LaroucheManual testing268269--19.60--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.699 GHz-days
Estimated T-Level:0.300
DigitsB1CurvesCompleteFacMiss
20110006 / 1000.06094.148%
25500006 / 2800.02197.876%

New Calculation Method

Total ECM effort:0.699 GHz-days
Estimated T-Level:0.300
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000060.699


Lucas-Lehmer results:
No L-L results for M3049391


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-28T09:13:14Oliver KruseGTX-0
6098783
324EDD952A528D__no
2017-12-11T00:03:30kkmrkkblmbrbkc4.xlarge
6098783
324EDD952A528D__no
2021-12-11T12:48:55Joe S.VMWare1
6098783
12380837642017746768649
324EDD952A528D45no


P-1 factor-bounds graph:
B1 = 3049391, B2 = 324855300 (P-1 stage 2)
B1 = 3049391, B2 = 218017800 (P-1 stage 2)
B1 = 3049391 (P-1 stage 1)
B1 = 477755, B2 = 6098782 (P-1 stage 2)
B1 = 477755 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
269
268
267
266
220
230
240
250
260
270
280
290
2100
Last modified: 2022-08-18T11:03:39+00:00