is 2 102745261 - 1
has 30929406 decimal digits
takes 409.090 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
Actual276148.950964.4737%8550001795500010.31493.8339%159.265868.3076%5.8076%
PrimeNet2729.307862.5000%450000220000009.37655.3821%18.684367.8821%5.3821%
GPU72276148.950964.4737%6500002200000010.46823.8531%159.419168.3268%3.8531%
Difference---+205000-4045000-0.1533-0.0192%-0.1533-0.0192%-0.0192%

Known prime factors (1 factor, 77.1 bits, 0.00007503% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1027452611610448311532268568432332477.092783709290267056
24 × 97 × 23603 × 21394201
23603213942012021-02-22402.116.858312.569

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-02-22T03:58:54Ben Deloi-080a4839bf83ce5de85500017955000122477.09210.31818.220.633.834%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-24T07:40:001997rj7compw263264--0.019--
2010-08-20T06:41:00Cedric VonckOracle10g264265--0.036--
2012-06-23T09:29:00ALSJC-Witten265266--0.073--
2013-08-28T10:18:00RobishManual testing266267--0.145--
2014-04-30T13:00:00Stef42Manual testing267268--0.291--
2014-05-02T19:20:00ANONYMOUS268269--0.582--
2014-05-06T17:38:00ANONYMOUS269270--1.164--
2014-05-09T04:09:00greg3llworkpc270271--2.327--
2014-12-25T18:43:00Quantum SingularityManual testing271272--4.655--
2020-02-21T12:05:26el groccoManual testing272273--9.310--
2020-03-30T17:21:28SRBaseManual testing273274--18.62--
2020-11-18T13:31:06dcheukManual testing274275--37.24--
2020-11-19T14:15:28DRobinsonPEManual testing275276--74.48--


ECM factoring results:
Exponent "102745261" not found


Lucas-Lehmer results:
Exponent "102745261" not found


PRP results:
Exponent "102745261" not found


P-1 factor-bounds graph:
B1 = 855000, B2 = 17955000 (stage 2)
B1 = 855000 (stage 1)
103
104
105
106
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: 2021-02-22T03:58:54+00:00