is 2 108055027 - 1
has 32527805 decimal digits
takes 443.176 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276141.631564.4737%5500000550000032.70863.2055%174.340167.6792%5.1792%
PrimeNet2728.850462.5000%450000220000009.65865.4143%18.509067.9143%5.4143%
GPU72276141.631564.4737%7000002400000011.71233.9795%153.343868.4532%3.9795%
Difference---+4800000-18500000+20.9962-0.7740%+20.9962-0.7740%-0.7740%

Known prime factors (1 factor, 103.7 bits, 0.00009598% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1080550271658162193942457533656080092835132103.70976727674777336251725525
52 × 72 × 43 × 571 × 701 × 216103 × 16839631
216103168396312021-01-121.328e+96.671410.191

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-01-12T20:22:16rucioManual testing5500000550000032103.70932.71886.465.423.206%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-26T01:50:00Donna NoblePH9500263264--0.018--
2010-09-11T13:10:00James Hintz12_122109264265--0.035--
2012-05-20T05:50:00omiXorpLLB03-z800-14265266--0.069--
2013-09-21T09:54:00shengManual testing266267--0.138--
2014-07-21T02:24:00SMoffatManual testing267268--0.277--
2014-07-27T03:29:00SMoffatManual testing268269--0.553--
2014-08-05T23:53:00SMoffatManual testing269270--1.107--
2015-05-04T23:44:00Mihai PredaManual testing270271--2.213--
2019-01-21T21:14:31Niels_Mache_NextcloudManual testing271272--4.426--
2019-12-05T14:31:43Niels_Mache_NextcloudManual testing272273--8.852--
2019-12-05T14:31:43Niels_Mache_NextcloudManual testing273274--17.70--
2020-10-20T08:01:02Joe S.GPU72_TF274275--35.41--
2020-10-20T08:30:01LOBESGPU72_TF275276--70.82--


ECM factoring results:
Exponent "108055027" not found


Lucas-Lehmer results:
Exponent "108055027" not found


PRP results:
Exponent "108055027" not found


P-1 factor-bounds graph:
B1 = 5500000 (stage 1)
104
105
106
107
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
2110
Last modified: 2021-01-12T20:22:16+00:00