is 2 101211151 - 1
has 30467593 decimal digits
takes 402.982 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
Actual276151.208664.4737%7150007150004.12791.4904%155.336565.9641%3.4641%
PrimeNet2729.448962.5000%400000200000008.47445.2067%17.923367.7067%5.2067%
GPU72276151.208664.4737%6500002200000010.46823.8461%161.676868.3198%3.8461%
Difference---+65000-21285000-6.3403-2.3556%-6.3403-2.3556%-2.3556%

Known prime factors (1 factor, 79.0 bits, 0.00007802% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1012111515918677657345662178214332478.9702923925673637316
22 × 173 × 3617 × 27941 × 41809
27941418092020-11-21690.720.16570.3283

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-11-21T06:13:49DRobinsonPEH-82507150007150002478.9704.128806.08.2561.490%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-03-15T00:33:001997rj7Manual testing263264--0.019--
2010-08-12T19:19:00Mr-Plonklinux-i7-920264265--0.037--
2011-09-14T11:27:00riccardo ubertiAthlonCrunch265266--0.074--
2013-08-25T02:13:00Risto A. PajuManual testing266268--0.443--
2013-08-25T02:13:00Risto A. PajuManual testing268269--0.591--
2013-08-25T02:13:00Risto A. PajuManual testing269270--1.181--
2013-08-25T02:13:00Risto A. PajuManual testing270271--2.363--
2014-12-13T03:29:00SMoffatManual testing271272--4.725--
2020-03-13T21:22:03el groccoGPU72_TF272273--9.451--
2020-03-21T02:04:54Hans LoeblichManual testing273274--18.90--
2020-09-27T06:08:02Mark RoseManual testing274275--37.80--
2020-09-27T06:08:02Mark RoseManual testing275276--75.61--


ECM factoring results:
Exponent "101211151" not found


Lucas-Lehmer results:
Exponent "101211151" not found


PRP results:
Exponent "101211151" not found


P-1 factor-bounds graph:
B1 = 715000 (stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
266
265
264
250
260
270
280
290
2100
Last modified: 2020-11-21T06:13:49+00:00