is 2 260213 - 1
has 78332 decimal digits
takes 0.002 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown3000000030000000001.900652.4850%1.900652.4850%52.4850%
PrimeNet2400.000055.0000%2800700000.000114.4044%0.000161.4820%6.4820%
GPU722440.000059.0909%50001200000.000110.5533%0.000163.4082%4.3172%
Difference-440.0000-59.0909%+29995000+2999880000+1.9004+41.9317%+1.9004-10.9232%-10.9232%

Known prime factors (2 factors, 159.0 bits, 0.06109477% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
260213250028263191134.54148043
107 × 449
-1074491.230e-81.245e-62.158e-6
2602132875498589358256992256705909280162527138124.43555252785013782112966237388394895
5 × 7 × 19 × 83 × 109 × 3019 × 57947 × 60083 × 184903 × 4725397
2016-10-2418490347253975.476e+110.00430.0048

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
26021371895591810254001245961745712792873977173430744948158.977
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-10-24T07:01:02kkmrkkblmbrbkManual testing5000000500000038124.4350.0500.0040.09923.304%
2021-09-15T14:17:22Oliver KruseOllaptop30000000300000000024---1.901--44.100%


Trial Factoring results:
Exponent "260213" not found


ECM factoring results:

Old Calculation Method

Total ECM effort:9.713 GHz-days
Estimated T-Level:26.633
DigitsB1CurvesCompleteFacMiss
2011000490 / 1004.9000.727%
2550000490 / 2801.75017.323%
30250000209 / 6400.32772.122%

New Calculation Method

Total ECM effort:9.713 GHz-days
Estimated T-Level:26.633
DigitsB1CompleteFacMiss
201100026.4810.000%
25500003.3453.526%
302500000.32372.388%
3510000000.02597.531%
4030000000.00299.840%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002812.049
250000250000002027.363
2500003850000070.301


Lucas-Lehmer results:
Exponent "260213" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T08:21:11Oliver KruseOllaptop2F3B9EAAD44959__?
2017-09-22T10:06:51Oliver KruseManual testing2F3B9EAAD44959__?
2017-10-12T17:28:27Oliver KruseGTX-22F3B9EAAD44959__no
2017-11-06T17:28:46kkmrkkblmbrbkc4.xlarge
25002826319
28754985893582569922567059092801625271
2F3B9EAAD44959__no
2020-04-17T21:09:56Oliver KruseAddPrpType5
25002826319
28754985893582569922567059092801625271
AB9C4DB2D3C8D7__no


P-1 factor-bounds graph:
B1 = 30000000, B2 = 3000000000 (P-1 stage 2)
B1 = 30000000 (P-1 stage 1)
B1 = 5000000 (P-1 stage 1)
101
102
103
104
105
106
107
108
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
230
240
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2021-09-16T22:01:59+00:00