is 2 111602839 - 1
has 33595803 decimal digits
takes 489.812 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
Actual277274.259764.9351%7800002285200012.61673.6481%286.876466.2143%
Target276137.129164.4737%7000002600000013.22684.0549%150.355965.9143%
Difference+1+137.1307+0.4614%+80000-3148000-0.6101-0.4068%+136.5206+0.3000%

Known prime factors (1 factor, 78.8 bits, 0.00007059% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1116028395173073139982490527158232478.7752317626140309249
7 × 11 × 19 × 17293 × 91607011		2021-09-051729391607011886.7831.86659.323

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-09-05Ge yongWork2020_75.22078000022852000122478.77512.62979.625.233.648%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-032knarfChipzilla263264--0.018--
2010-09-22sasaki3mate_ma2264265--0.033--
2012-05-29Donna NobleOpt6128x4x4265266--0.067--
2013-10-05PascalBieriManual testing266267--0.134--
2013-10-14PascalBieriManual testing267268--0.268--
2013-11-03SMoffatManual testing268269--0.536--
2014-11-14wombatmanManual testing269270--1.071--
2014-11-20RichD0Manual testing270271--2.143--
2019-01-14Niels_Mache_NextcloudManual testing271272--4.285--
2020-04-20SRBaseManual testing272273--8.571--
2020-07-27jwnutterManual testing273274--17.14--
2020-11-23arpcarManual testing274275--34.28--
2020-12-11arpcarManual testing275276--68.57--
2021-01-11arpcarManual testing276277--137.1--


ECM factoring results:
No ECM results for M111602839


Lucas-Lehmer results:
No L-L results for M111602839


PRP results:
No PRP results for M111602839


P-1 factor-bounds graph:
B1 = 780000, B2 = 22852000 (P-1 stage 2)
B1 = 780000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
277
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
Last modified: 2023-03-25T13:08:14+00:00