is 2 1162229 - 1
has 349866 decimal digits
takes 0.036 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LD78F912B230A6E6Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26725.566368.6567%300000100000000.03684.1441%25.603269.9556%1.2989%
PrimeNet2560.008362.5000%5000800000.00042.2551%0.008763.3457%0.8457%
GPU722600.132265.0000%5000260000.00030.7727%0.132465.2705%0.2705%
Difference+7+25.4342+3.6567%+295000+9974000+0.0366+3.3714%+25.4707+4.6852%+4.6852%

Known prime factors (1 factor, 64.0 bits, 0.00551068% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1162229190545702003486914472064.0478197425034287
3 × 2732475011429
2007-10-10327324750114293.08136,619.912,364

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-03-16T00:00:00Jocelyn Larouchev4_computers10001000---4.44667e-5--0.005%
2002-06-09T00:00:00ANONYMOUSv4_computers500001000000---0.005--1.746%
unknown30000010000000---0.037--4.144%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-07-12T00:00:00ANONYMOUSv4_computers21256--0.008--
2001-11-10T00:00:00ANONYMOUSv4_computers21257--0.017--
2003-05-04T00:00:00ANONYMOUSv4_computers21258--0.033--
2022-04-12T17:43:28LordJuliusManual testing21261--0.264--
2022-04-12T17:43:28LordJuliusManual testing261262--0.264--
2022-04-12T17:43:28LordJuliusManual testing262263--0.845--
2022-04-12T17:43:28LordJuliusManual testing263264--1.689--


ECM factoring results:

Old Calculation Method

Total ECM effort:18.388 GHz-days
Estimated T-Level:25.344
DigitsB1CurvesCompleteFacMiss
2011000325 / 1003.2503.815%
2550000325 / 2801.16131.261%
3025000044 / 6400.06993.351%

New Calculation Method

Total ECM effort:18.388 GHz-days
Estimated T-Level:25.344
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000028110.31
25000025000000448.075


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-07-27T00:00:00Ethan O'Connorv4_computersD78F912B230A6E6C0.036


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-29T08:30:47Oliver KruseGTX-3
19054570200348691447
DEAC2715E21CE2__no
2017-10-17T10:07:15Oliver KruseThreadripper
19054570200348691447
DEAC2715E21CE2__no
2018-01-04T22:53:43ATHec2-1xf
19054570200348691447
DEAC2715E21CE2__no


P-1 factor-bounds graph:
B1 = 300000, B2 = 10000000 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
B1 = 1000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-04-12T17:43:28+00:00