is 2 102864833 - 1
has 30965401 decimal digits
takes 409.566 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual276148.777764.4737%100000010000005.77331.7238%154.551065.0861%
Target276148.777764.4737%6500002200000010.46823.8537%159.245965.8428%
Difference---+350000-21000000-4.6949-2.1299%-4.6949-0.7567%

Known prime factors (1 factor, 81.2 bits, 0.00007895% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10286483328083617473527933401839032581.21613650737892865647
3 × 72 × 109 × 151 × 751 × 1759 × 4271		2021-03-03175942719,240.60.01090.0207

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-03-03ZenzomaManual testing100000010000002581.2165.773819.111.551.724%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-191997rj7compa263264--0.019--
2010-08-20Donna NobleATH2-630-temp264265--0.036--
2012-04-26KYOJI_KAMEI265266--0.073--
2013-09-09JoDuManual testing266267--0.145--
2014-01-01SRS TechnologyManual testing267268--0.291--
2014-01-01SRS TechnologyManual testing268269--0.581--
2014-01-01SRS TechnologyManual testing269270--1.162--
2014-01-01SRS TechnologyManual testing270271--2.325--
2014-01-01SRS TechnologyManual testing271272--4.649--
2020-01-30Dylan DelgadoManual testing272273--9.299--
2020-01-31Hans LoeblichManual testing273274--18.60--
2020-10-24ktonyGPU72_TF274275--37.19--
2020-10-27RichD0GPU72_TF275276--74.39--


ECM factoring results:
No ECM results for M102864833


Lucas-Lehmer results:
No L-L results for M102864833


PRP results:
No PRP results for M102864833


P-1 factor-bounds graph:
B1 = 1000000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67.7
250
260
270
280
290
Last modified: 2021-03-03T23:46:36+00:00