is 2 992513 - 1
has 298777 decimal digits
takes 0.024 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L52CD805287AEE1DEdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26729.938170.1493 %100000005000000001.290310.6396 %31.228473.3252 %
Target2440.000054.5455 %1600032500000.006818.4626 %0.006862.9375 %
Difference+23+29.9381+15.6038 %+9984000+496750000+1.2836-7.8230 %+31.2216+10.3877 %

Known prime factors (1 factor, 86.1 bits, 0.00867689% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
992513840371758410099241142698392686.11942335554214912008263
3 × 19 × 394019 × 1885008137461
2014-01-14394019188500813746115,789,6883,611.26,744.7

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-01-08ANONYMOUSv4_computers2000200000--0.00012.325%
2002-03-03ANONYMOUSv4_computers4096409600--0.00115.255%
2002-04-28ANONYMOUSv4_computers163841638400--0.00420.824%
2002-08-10ANONYMOUSv4_computers32768327680012--0.00723.543%
2003-01-25ANONYMOUSv4_computers65536655360012--0.01526.210%
2003-09-09ANONYMOUSv4_computers1310721310720012--0.02928.817%
2011-05-29JossManual testing200000200000--0.00715.696%
2011-06-12JossManual testing400000400000--0.01417.859%
2012-02-06JossManual testing670952670952--0.02419.470%
2012-07-14JossManual testing992623992623--0.03520.685%
2013-10-24David Campeaui5-2500k10100003232000012--0.09532.729%
2013-12-12alpertronManual testing1000000050000000012--1.29041.469%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-07-12ANONYMOUSv4_computers212550.005
2000-10-22ANONYMOUSv4_computers212560.010
2001-12-01ANONYMOUSv4_computers212570.019
2003-06-30ANONYMOUSv4_computers212580.039
2022-03-07LordJuliusManual testing258260
2010-05-15Architects Cubeda3_bu22602610.155
2013-12-08Jerry HallettManual testing2612620.309
2013-12-08Jerry HallettManual testing2622630.989


ECM factoring results:
Total ECM effort:14.203 GHz-days
Estimated T-Level:25.650
DigitsB1CompleteFacMiss
201100014.5380.000%
25500001.59520.295%
302500000.13087.815%
3510000000.00999.137%


ECM Summary

B1B2factorcurvesGHz-days
10.284
5000050000002747.668
25000025000000446.252


Lucas-Lehmer results:
No L-L results for M992513


PRP results:
dateuseridcompidcofactorsres64
2017-09-28Oliver KruseGTX-3
84037175841009924114269839
41119501AC25D893
2017-10-16kkmrkkblmbrbkc4.xlarge
84037175841009924114269839
41119501AC25D893
2020-04-25Oliver KruseAddPrpType5
84037175841009924114269839
A9A3661E3BE2F1D0


CERT results:
No CERT results for M992513


P-1 factor-bounds graph:
B1 = 10000000, B2 = 500000000 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
B1 = 1010000, B2 = 32320000 (P-1 stage 2)
B1 = 1010000 (P-1 stage 1)
B1 = 992623 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 670952 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 131072 (P-1 stage 1)
B1 = 16384, B2 = 1638400 (P-1 stage 2)
B1 = 65536 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
B1 = 4096, B2 = 409600 (P-1 stage 2)
B1 = 16384 (P-1 stage 1)
B1 = 2000, B2 = 200000 (P-1 stage 2)
B1 = 4096 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
263
262
261
260
258
257
256
255
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=25.65 ~= 69-bit
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-03T02:29:32+00:00