is 2 57739921 - 1
has 17381449 decimal digits
takes 122.377 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27333.128664.3836%5300005300001.62881.7032%34.757464.9902%0.6066%
PrimeNet2692.067762.3188%260000110000002.59735.5378%4.665064.4056%2.0867%
GPU7227333.128664.3836%400000130000003.33904.0750%36.467665.8349%1.4514%
Difference---+130000-12470000-1.7102-2.3718%-1.7102-0.8448%-0.8448%

Known prime factors (1 factor, 77.2 bits, 0.00013371% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
577399211741294534679241696511272477.2051507877482789803
3 × 127 × 3581 × 30161 × 36643
2012-09-223016136643668.140.09380.1886

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-09-22T21:35:00Jwb52zClay5300005300002477.2051.629244.83.2581.703%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.07815e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.15630e-5--
2000-06-29T00:00:00ANONYMOUSv4_computers21256--0.000--
2000-07-03T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-30T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-12-02T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-09-21T00:00:00Team Prime Ribv4_computers21260--0.003--
Missing TF 60 - 61
Missing TF 61 - 62
Missing TF 62 - 63
2009-01-11T18:25:00cawgodcawgod1263264--0.034--
2009-01-16T05:35:00cawgodcawgod1264265--0.065--
2009-01-17T20:49:00cawgodcawgod1265266--0.129--
2009-01-18T21:51:00cawgodcawgod1266267--0.259--
2009-06-11T01:46:00xtuhksa-192.168.0.239267268--0.518--
2011-05-01T17:55:00UngelovendeManual testing268269--1.035--
2011-05-01T17:55:00UngelovendeManual testing269270--2.071--
2011-05-01T17:55:00UngelovendeManual testing270271--4.141--
2012-06-12T17:45:00Jerry HallettManual testing271272--8.283--
2012-09-03T17:32:00Craig MeyersManual testing272273--16.57--


ECM factoring results:
No ECM results for M57739921


Lucas-Lehmer results:
No L-L results for M57739921


PRP results:
No PRP results for M57739921


P-1 factor-bounds graph:
B1 = 530000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
260
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-09-22T21:35:22+00:00