is 2 2446013 - 1
has 736324 decimal digits
takes 0.165 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LCE2799A1C1F9CC71double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26948.808768.1159%60000001800000001.51648.3443%50.325170.7765%2.6605%
PrimeNet2590.031462.7119%100001800000.00192.5275%0.033363.6543%0.9425%
GPU722630.652565.0794%100001500000.00171.3072%0.654265.5358%0.4565%
Difference+6+48.1562+3.0366%+5990000+179850000+1.5146+7.0372%+49.6709+5.2406%+5.2406%

Known prime factors:
No known factors for M2446013

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-10-14T00:00:00ANONYMOUSv4_computers2048204800---0.001--0.188%
2003-10-31T00:00:00Team Prime Ribv4_computers15000217500---0.003--0.658%
2010-11-19T00:04:00Jocelyn LaroucheManual testing2000020000---0.002--0.220%
2011-01-18T20:44:00Oscar Östlin950001947500---0.019--2.103%
2014-01-24T15:24:00mikrMSI117200048000000---0.365--5.887%
2019-04-01T08:48:30Sid & AndyBullseye600000018000000012---1.516--8.344%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-03-15T00:00:00ANONYMOUSv4_computers21259--0.031--
2016-02-23T16:29:14Mark RoseManual testing259260--0.031--
2009-01-15T22:10:00Sturle Sundeletov.ifi260261--0.063--
2012-06-06T19:43:00Sebastian HornbostelManual testing261262--0.126--
2013-01-23T08:28:00dbaughManual testing262263--0.401--
2015-02-27T20:41:00VictordeHollanderManual testing263264--0.803--
2015-02-27T20:41:00VictordeHollanderManual testing264265--1.528--
2015-10-25T20:35:03ramgeisManual testing265266--3.055--
2017-07-12T11:35:14Gordon SpenceManual testing266267--6.110--
2019-03-25T14:11:01TJAOIManual testing267268--12.22--
2021-06-17T12:14:43TJAOIManual testing268269--24.44--


ECM factoring results:

Old Calculation Method

Total ECM effort:15.002 GHz-days
Estimated T-Level:22.911
DigitsB1CurvesCompleteFacMiss
2011000163 / 1001.63019.433%
2550000163 / 2800.58255.812%

New Calculation Method

Total ECM effort:15.002 GHz-days
Estimated T-Level:22.911
DigitsB1CompleteFacMiss
20110006.3340.178%
25500000.58555.733%
302500000.03796.383%
3510000000.00299.828%


ECM Summary

B1B2factorcurvesGHz-days
500005000070.365
50000500000015613.92
50000668399770.713


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-15T00:00:00ANONYMOUSv4_computersCE2799A1C1F9CC710.165
2018-05-25T03:39:17kkmrkkblmbrbkoldCE2799A1C1F9CC710.165


PRP results:
No PRP results for M2446013


P-1 factor-bounds graph:
B1 = 6000000, B2 = 180000000 (P-1 stage 2)
B1 = 6000000 (P-1 stage 1)
B1 = 1172000, B2 = 48000000 (P-1 stage 2)
B1 = 1172000 (P-1 stage 1)
B1 = 95000, B2 = 1947500 (P-1 stage 2)
B1 = 95000 (P-1 stage 1)
B1 = 15000, B2 = 217500 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
B1 = 15000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-04-10T06:36:02+00:00