is 2 118512943 - 1
has 35675951 decimal digits
takes 547.299 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
Actual277258.268564.9351%82800022274637086.50615.3981%344.774766.8279%
Target276129.133564.4737%80000014000000056.14084.2116%185.274365.9699%
Difference+1+129.1350+0.4614%+28000+82746370+30.3653+1.1865%+159.5004+0.8580%

Known prime factors (1 factor, 77.0 bits, 0.00006501% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1185129431562779290297068481002232477.048659328530174577
34 × 83 × 2203 × 44516833
2023-09-24220344516833281.5816.25530.334

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2023-09-24gcardonaRyzen-7950X8280002227463702477.04886.511,095173.05.398%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-13sasaki3mate_ma1263264--0.017--
2010-10-15RichardFX5000_1264265--0.032--
2012-07-21Smok_bmvbmv_homeC331265266--0.063--
2014-06-11snme2pm1Manual testing266267--0.126--
2014-07-01snme2pm1Manual testing267268--0.252--
2014-07-22snme2pm1Manual testing268269--0.504--
2014-08-14snme2pm1Manual testing269270--1.009--
2014-12-20snme2pm1Manual testing270271--2.018--
2015-04-15SMoffatManual testing271272--4.035--
2017-02-09snme2pm1Manual testing272273--8.071--
2019-07-06Niels_Mache_NextcloudManual testing273274--16.14--
2021-04-13hktManual testing274275--32.28--
2021-07-04TheJudgerManual testing275276--64.57--
2022-01-01AerowManual testing276277--129.1--


ECM factoring results:
No ECM results for M118512943


Lucas-Lehmer results:
No L-L results for M118512943


PRP results:
No PRP results for M118512943


P-1 factor-bounds graph:
B1 = 828000, B2 = 222746370 (P-1 stage 2)
B1 = 828000 (P-1 stage 1)
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105
106
102
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105
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109
TF factor-bounds graph:
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276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67.9
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Last modified: 2023-10-02T12:12:48+00:00