is 2 115783163 - 1
has 34854206 decimal digits
takes 534.693 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
Actual277264.357764.9351%516000135320008.20383.1193%272.561566.0289%
Target276132.178164.4737%7000002600000013.91744.0729%146.095565.9206%
Difference+1+132.1796+0.4614%-184000-12468000-5.7136-0.9536%+126.4660+0.1082%

Known prime factors (1 factor, 92.1 bits, 0.00007956% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11578316353656157391893292214139732172892.11623170967177625512016
24 × 3 × 139 × 1951 × 131249 × 13562347		2022-06-22131249135623478,955,0225.77899.2413

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-06-22arnaudsrv-6105160001353200062892.1168.2041,06916.413.119%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-09wmjmoellerconrac01263264--0.017--
2010-10-07Donna NobleHTPC-V64264265--0.032--
2012-06-26Richard172.26.180.86265266--0.065--
2014-12-08Richard172.26.180.86266267--0.129--
2015-03-11bunddogManual testing267268--0.258--
2015-03-14endless_mikeManual testing268269--0.516--
2015-03-14endless_mikeManual testing269270--1.033--
2015-03-14endless_mikeManual testing270271--2.065--
2015-03-14endless_mikeManual testing271272--4.131--
2020-04-25SRBaseManual testing272273--8.261--
2020-12-19LOBESManual testing273274--16.52--
2020-12-21hktManual testing274275--33.04--
2021-06-06TheJudgerManual testing275276--66.09--
2022-04-19404_factor_not_foundManual testing276277--132.2--


ECM factoring results:
No ECM results for M115783163


Lucas-Lehmer results:
No L-L results for M115783163


PRP results:
No PRP results for M115783163


P-1 factor-bounds graph:
B1 = 516000, B2 = 13532000 (P-1 stage 2)
B1 = 516000 (P-1 stage 1)
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105
106
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
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Last modified: 2023-03-25T13:08:14+00:00