is 2 5092709 - 1
has 1533059 decimal digits
takes 0.706 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LE7B588E790631FD4double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2675.834665.6716%2000000600000001.03718.2192%6.871768.4932%2.8215%
PrimeNet2610.060362.2951%220005000000.00973.4087%0.070063.5803%1.2852%
GPU722651.432664.6154%340007000000.01412.4235%1.446765.4729%0.8575%
Difference+2+4.4020+1.0563%+1966000+59300000+1.0230+5.7957%+5.4250+3.0202%+3.0202%

Known prime factors (1 factor, 103.9 bits, 0.00204076% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
50927091932437364155956183653378996362332103.9301897258771467166279924279
11 × 113 × 9619 × 18637 × 740969 × 11490779
2017-09-10740969114907793.148e+100.26660.3031

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-09-10T11:58:42mikrS0592000000600000001232103.9301.0371.4122.0748.219%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-05-23T00:00:00ANONYMOUSv4_computers21261--0.060--
2008-12-29T11:25:00Sturle Sundecorbusier.ifi261262--0.060--
2009-07-27T03:14:00GrunwalderGIMPManual testing21263--0.313--
2016-02-23T16:39:08Mark RoseManual testing262263--0.193--
2014-08-30T01:12:00krackerManual testing263264--0.386--
2014-09-14T10:24:00lycornManual testing264265--0.734--
2015-08-03T21:16:00snme2pm1Manual testing265266--1.467--
2016-05-26T12:49:25Gordon SpenceManual testing266267--2.935--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.897 GHz-days
Estimated T-Level:0.450
DigitsB1CurvesCompleteFacMiss
20110009 / 1000.09091.352%
25500009 / 2800.03296.831%

New Calculation Method

Total ECM effort:1.897 GHz-days
Estimated T-Level:0.450
DigitsB1CompleteFacMiss
20110000.29074.802%
25500000.02697.410%
302500000.00299.839%


ECM Summary

B1B2factorcurvesGHz-days
50000500000091.897


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-05-24T00:00:00ANONYMOUSv4_computersE7B588E790631FD40.706
2000-06-11T00:00:00ANONYMOUSv4_computersE7B588E790631FD40.706


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-22T17:37:56kkmrkkblmbrbkc4.xlarge
19324373641559561836533789963623
A92EA76059F6AA__no
2018-05-03T11:02:46ATHec2-PRPCFDC
19324373641559561836533789963623
A92EA76059F6AA__no


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
TF factor-bounds graph:
267
266
265
264
263
262
261
250
260
270
280
290
2100
2110
Last modified: 2018-05-03T11:02:46+00:00