is 2 108204611 - 1
has 32572834 decimal digits
takes 474.898 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
Actual276141.435764.4737%5500000550000035.00143.2060%176.437167.6797%5.1797%
PrimeNet2728.838262.5000%4500002400000011.02915.4967%19.867367.9967%5.4967%
GPU72276141.435764.4737%7000002400000012.53343.9801%153.969068.4538%3.9801%
Difference---+4800000-18500000+22.4680-0.7741%+22.4680-0.7741%-0.7741%

Known prime factors (1 factor, 82.3 bits, 0.00007610% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
10820461161496135682701721866119932582.34728416596628540036
22 × 3 × 7 × 43 × 59 × 10433 × 12780949
10433127809492021-02-2417,9394.49428.2767

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-02-24T00:43:06Tom XueManual testing550000055000002582.34735.00949.870.003.206%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-26T11:01:00hustensaftW7hm263264--0.018--
2010-09-09T23:21:00sasaki3ssk_saver264265--0.035--
2012-05-23T01:06:00omiXorpLLB03-z800-24265266--0.069--
2014-07-23T11:17:00]mh[ Virtekwork3266267--0.138--
2014-11-11T02:23:00webbertManual testing267268--0.276--
2014-11-12T01:47:00webbertManual testing268269--0.552--
2014-11-12T14:00:00wombatmanManual testing269270--1.105--
2014-11-20T17:29:00Special_Edoyster270271--2.210--
2019-01-20T11:16:59Niels_Mache_NextcloudManual testing271272--4.420--
2019-11-13T11:11:40Niels_Mache_NextcloudManual testing272273--8.840--
2019-11-13T11:11:40Niels_Mache_NextcloudManual testing273274--17.68--
2020-10-20T22:29:02ktonyGPU72_TF274275--35.36--
2020-10-20T22:56:02ktonyGPU72_TF275276--70.72--


ECM factoring results:
Exponent "108204611" not found


Lucas-Lehmer results:
Exponent "108204611" not found


PRP results:
Exponent "108204611" not found


P-1 factor-bounds graph:
B1 = 5500000 (stage 1)
103
104
105
106
107
103
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
Last modified: 2021-02-24T00:43:06+00:00