is 2 160311829 - 1
has 48258670 decimal digits
takes 1,052.046 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
Actual279763.719064.5570 %5000000500000047.57812.4477 %811.297165.4245 %
Target278381.859064.1026 %1000000180000000102.31593.8993 %484.174965.5023 %
Difference+1+381.8601+0.4544 %+4000000-175000000-54.7378-1.4516 %+327.1222-0.0778 %

Known prime factors (1 factor, 84.2 bits, 0.00005249% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
160311829215306040779404801661279992684.15567152262600473731
19 × 569 × 2917 × 5023 × 423931
2020-12-22502342393124,4390.26500.4105

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-12-22Roland ClarksonManual testing5000000500000012684.15549.342.696%


Trial Factoring results:
5758596061626364656667686970717273747576777879
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-29Charles A. Morrismagnetar2632640.012
2011-02-02Mr-PlonkLinux-i72642650.023
2013-02-22tscvista22652660.047
2015-05-02yangyiMain2662670.093
2016-03-02XZTManual testing2672680.186
2017-03-29La GüiraManual testing2682690.373
2017-03-29La GüiraManual testing2692700.746
2017-11-18jiboManual testing2702711.492
2017-11-18jiboManual testing2712722.983
2017-11-20Ilya AlexandrovManual testing2722735.967
2020-12-19Roland ClarksonManual testing27327411.93
2020-12-19Roland ClarksonManual testing27427523.87
2020-12-19Roland ClarksonManual testing27527647.73
2020-12-19Roland ClarksonManual testing27627795.47
2020-12-19Roland ClarksonManual testing277278190.9
2020-12-19Roland ClarksonManual testing278279381.9


ECM factoring results:
No ECM results for M160311829


Lucas-Lehmer results:
No L-L results for M160311829


PRP results:
No PRP results for M160311829


CERT results:
No CERT results for M160311829


P-1 factor-bounds graph:
B1 = 5000000 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
TF factor-bounds graph:
279
278
277
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
250
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290
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Last modified: 2024-03-13T02:15:48+00:00