is 2 4605593 - 1
has 1386422 decimal digits
takes 0.606 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LEC4A2538D22D3EF0double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual273415.330768.4932%1988203616343031.00004.8840%416.330770.0319%1.5388%
PrimeNet2610.066762.2951%190004000000.00763.0764%0.074363.4551%1.1600%
GPU722651.584164.6154%280006000000.01132.1875%1.595465.3894%0.7740%
Difference+8+413.7466+3.8778%+1960203+61034303+0.9887+2.6965%+414.7353+4.6425%+4.6425%

Known prime factors:
No known factors for M4605593

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-08-28T08:47:00Carsten Kossendeydurandal25000375000---0.008--0.582%
2012-01-19T14:32:00Squeeky_SquirrelT7500_22001100002035000---0.041--1.484%
2017-12-05T15:55:42Ismo Laitela6600K19882036163430312---1.000--4.884%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-08-18T00:00:00ANONYMOUSv4_computers21261--0.067--
2010-08-10T06:59:00markrut261262--0.067--
2011-12-09T05:23:00GrunwalderGIMPManual testing21263--0.347--
2016-02-23T16:38:56Mark RoseManual testing262263--0.213--
2015-01-15T23:19:00JayderManual testing263264--0.426--
2015-01-16T12:48:00monstManual testing264265--0.811--
2015-07-04T23:47:00snme2pm1Manual testing265266--1.623--
2018-05-01T20:29:03Gordon SpenceManual testing266267--3.245--
2018-09-28T14:48:53chuenkitManual testing267268--6.490--
2021-03-22T11:29:32-Anonymous-Manual testing268269--12.98--
2021-03-22T11:29:32-Anonymous-Manual testing269270--25.96--
2021-03-22T11:29:32-Anonymous-Manual testing270271--51.92--
2021-03-24T11:27:19-Anonymous-Manual testing271272--103.8--
2021-03-25T11:10:50-Anonymous-Manual testing272273--207.7--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.765 GHz-days
Estimated T-Level:0.450
DigitsB1CurvesCompleteFacMiss
20110009 / 1000.09091.352%
25500009 / 2800.03296.831%

New Calculation Method

Total ECM effort:1.765 GHz-days
Estimated T-Level:0.450
DigitsB1CompleteFacMiss
20110000.34670.740%
25500000.03296.848%
302500000.00299.798%


ECM Summary

B1B2factorcurvesGHz-days
50000500000091.765


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-11-14T06:16:51MadPooManual testingEC4A2538D22D3EF00.606


PRP results:
No PRP results for M4605593


P-1 factor-bounds graph:
B1 = 1988203, B2 = 61634303 (P-1 stage 2)
B1 = 1988203 (P-1 stage 1)
B1 = 110000, B2 = 2035000 (P-1 stage 2)
B1 = 110000 (P-1 stage 1)
B1 = 25000, B2 = 375000 (P-1 stage 2)
B1 = 25000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
263
262
261
250
260
270
280
290
2100
Last modified: 2021-03-25T11:10:50+00:00