is 2 56929337 - 1
has 17137439 decimal digits
takes 120.659 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LFE3174AEA5D555F8double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27467.203864.8649%1000000280000007.59404.7767%74.797766.5432%1.6783%
PrimeNet2692.097162.3188%240000110000002.53925.4716%4.636364.3806%2.0618%
GPU7227333.600364.3836%400000130000003.33904.0678%36.939365.8324%1.4488%
Difference+1+33.6034+0.4813%+600000+15000000+4.2550+0.7089%+37.8584+0.7108%+0.7108%

Known prime factors:
No known factors for M56929337

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2011-11-26T04:15:00ANONYMOUSpastword780000780000---2.397--1.786%
2020-08-13T11:35:36riccardo ubertiManual testing10000002800000012---7.594--4.777%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.10774e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.10774e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.21548e-5--
2000-06-28T00:00:00ANONYMOUSv4_computers21256--0.000--
2000-06-29T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-30T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-11-16T00:00:00ANONYMOUSv4_computers21258--0.001--
2005-01-20T00:00:00ThomRuleyv4_computers21262--0.011--
2016-02-23T16:40:42Mark RoseManual testing262263--0.017--
2008-08-25T15:09:00James HeinrichQ6600263264--0.034--
2008-08-25T21:35:00Sturle Sundebakeng.ifi264265--0.066--
2008-08-26T06:16:00Sturle Sundescarpia.ifi265266--0.131--
2008-08-27T07:01:00Sturle Sundenardi.ifi266267--0.263--
2009-12-05T15:00:00Richard B. WoodsPuttputt267268--0.525--
2009-12-05T15:01:00Richard B. WoodsPuttputt268269--1.050--
2011-09-11T12:11:00Erik Oppedijk269270--2.100--
2011-10-03T14:19:00Helmut Zulusoeko270271--4.200--
2012-05-14T19:30:00BigBrotherManual testing271272--8.401--
2016-01-09T11:08:02LaurVManual testing272273--16.80--
2019-02-03T18:25:14TheJudgerManual testing273274--33.60--


ECM factoring results:
No ECM results for M56929337


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2012-06-21T04:26:00SnorbuckleWorkFE3174AEA5D555F8120.7
2020-08-01T02:11:44mhoneymhoney-pc20FFADBA89B896__120.7
2020-10-09T13:02:18yooperFE3174AEA5D555F8120.7


PRP results:
No PRP results for M56929337


P-1 factor-bounds graph:
B1 = 1000000, B2 = 28000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 780000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
263
262
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2020-10-09T13:02:18+00:00