is 2 9929 - 1
has 2989 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LECA5D56647C5498Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672,992.639579.1045%100000000000100000000000026.352221.3989%3,018.991783.5759%
Target2440.000268.1818%500100000.00001.2611%0.000268.5831%
Difference+23+2,992.6393+10.9227%+99999999500+999999990000+26.3522+20.1379%+3,018.9915+14.9928%

Known prime factors:
No known factors for M9929

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-02-11ANONYMOUSv4_computers1000000100000000---0.001--4.174%
2001-05-27ANONYMOUSv4_computers1000000100000000---0.001--4.174%
2001-05-27ANONYMOUSv4_computers30000000004290000000---0.543--11.442%
2002-06-23ANONYMOUSv4_computers10737418244290000000---0.221--11.496%
2002-09-14ANONYMOUSv4_computers21474836484290000000---0.400--11.481%
2002-11-16ANONYMOUSv4_computers32212254724290000000---0.580--11.431%
2003-03-16ANONYMOUSv4_computers42900000002147483647---0.759--11.378%
2004-09-02ANONYMOUSv4_computers1000100000---1.13055e-6--0.017%
2004-09-02ANONYMOUSv4_computers100001000000---1.13055e-5--0.339%
2004-09-02ANONYMOUSv4_computers10000010000000---0.000--1.631%
2004-09-02ANONYMOUSv4_computers1000000100000000---0.001--4.174%
2004-09-02ANONYMOUSv4_computers100000001000000000---0.011--7.748%
2005-04-11ANONYMOUSv4_computers1000000100000000---0.001--4.174%
2005-04-11ANONYMOUSv4_computers1000000050000000---0.002--4.633%
2015-02-12JayderHPJared135949197380210026404---1.000--16.339%
2016-05-19ANONYMOUSManual testing1000000000010000000000012---2.635--17.119%
2016-10-30ANONYMOUSManual testing2000000000020000000000012---5.270--18.407%
2016-10-30ANONYMOUSManual testing4000000000040000000000012---10.54--19.697%
2016-11-03ANONYMOUSManual testing100000000000100000000000012---26.35--21.399%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-05-11ATH5960X100000000024100000000027--2.725


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-09-22ANONYMOUSv4_computers252253--0.060--
1999-12-30ANONYMOUSv4_computers253254--0.121--
2000-03-01ANONYMOUSv4_computers254255--0.242--
2000-05-31ANONYMOUSv4_computers21256--0.967--
2002-12-09ANONYMOUSv4_computers21257--1.934--
2016-02-23LaurVManual testing257258--1.934--
2010-07-20George WoltmanManual testing258259--3.867--
2010-07-20George WoltmanManual testing259260--7.734--
2012-11-08bcp19Manual testing260261--15.47--
2015-01-05LaurVManual testing261262--30.94--
2015-01-20LaurVManual testing262263--98.87--
2018-07-31Anton RepkoManual testing263264--197.7--
2019-08-27monstedManual testing264265--376.3--
2022-06-15Anton RepkoManual testing265266--752.6--


ECM factoring results:
Total ECM effort:2,513.859 GHz-days
Estimated T-Level:50.780
DigitsB1CompleteFacMiss
20110006,815.6840.000%
25500002,201.3080.000%
30250000656.7120.000%
351000000156.7780.000%
40300000033.0770.000%
45110000006.1920.205%
50440000001.02835.770%
551100000000.15685.556%
602600000000.02297.868%
658000000000.00399.724%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002800.036
500005000000010,0004.997
250000250000006400.407
2500002500000004,0009.99
10000001000000001,5824.025
100000010000000001,0009.99
11000000110000000050013.99
44000000440000000014,0281,570
1100000001100000000011030.79
110000000149140361370200284.6
110000000149153279192100142.3
110000000149164461544100142.3
110000000149178813612100142.4
110000000149205675954100142.4
various11815.1236


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1997-01-01George WoltmanECA5D56647C5498A1.21079e-6
2015-04-11MadPooManual testingECA5D56647C5498A1.21079e-6


PRP results:
No PRP results for M9929


P-1 factor-bounds graph:
B1 = 100000000000, B2 = 1000000000000 (P-1 stage 2)
B1 = 100000000000 (P-1 stage 1)
B1 = 40000000000, B2 = 400000000000 (P-1 stage 2)
B1 = 40000000000 (P-1 stage 1)
B1 = 20000000000, B2 = 200000000000 (P-1 stage 2)
B1 = 20000000000 (P-1 stage 1)
B1 = 10000000000, B2 = 100000000000 (P-1 stage 2)
B1 = 10000000000 (P-1 stage 1)
B1 = 1359491973, B2 = 80210026404 (P-1 stage 2)
B1 = 4290000000 (P-1 stage 1)
B1 = 3221225472, B2 = 4290000000 (P-1 stage 2)
B1 = 3221225472 (P-1 stage 1)
B1 = 3000000000, B2 = 4290000000 (P-1 stage 2)
B1 = 3000000000 (P-1 stage 1)
B1 = 2147483648, B2 = 4290000000 (P-1 stage 2)
B1 = 2147483648 (P-1 stage 1)
B1 = 1359491973 (P-1 stage 1)
B1 = 1073741824, B2 = 4290000000 (P-1 stage 2)
B1 = 1073741824 (P-1 stage 1)
B1 = 10000000, B2 = 1000000000 (P-1 stage 2)
B1 = 10000000, B2 = 50000000 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
B1 = 1000000, B2 = 100000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 100000, B2 = 10000000 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 10000, B2 = 1000000 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 1000 (P-1 stage 1)
102
103
104
105
106
107
108
109
1010
1011
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
266
265
264
263
262
261
260
259
258
257
256
255
254
253
this exponent TF target: 44
TF double-checked to: 67.8
ECM T-Level=50.78 ~= 152-bit
250
260
270
280
290
2100
2110
2120
2130
2140
2150
2160
Last modified: 2023-04-26T21:34:10+00:00