is 2 159018973 - 1
has 47869481 decimal digits
takes 1,043.562 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
Actual27312.029061.6438 %1000001000000.95160.8754 %12.980661.9796 %
Target278384.963564.1026 %1000000180000000102.31593.8956 %487.279565.5010 %
Difference-5-372.9345-2.4587 %-900000-179900000-101.3644-3.0202 %-474.2989-3.5214 %

Known prime factors (1 factor, 82.9 bits, 0.00005215% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
15901897391971556247086395661437832582.92728918422283825967
43 × 97 × 8521 × 10009 × 81293
2019-12-2810009812936,159.40.13220.1938

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-12-28MadPooManual testing10000010000012582.9270.9520.427%


Trial Factoring results:
57585960616263646566676869707172737475767778
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-28subgeniusslacker2632640.012
2011-01-31runeskubuntutest22642650.023
2013-02-17carlos56amd6002652660.047
2015-04-27S. EichsteiningerMacPrime2662670.094
2016-05-16ANONYMOUSne122672680.188
2017-03-14Xolotlspirit-cpu-112682690.376
2018-02-19YxinityManual testing2692700.752
2018-05-13proxy2222Manual testing2702711.504
2018-05-26ZenghuiManual testing2712723.008
2018-11-19S36049Wolle42722736.015


ECM factoring results:
No ECM results for M159018973


Lucas-Lehmer results:
No L-L results for M159018973


PRP results:
No PRP results for M159018973


CERT results:
No CERT results for M159018973


P-1 factor-bounds graph:
B1 = 100000 (P-1 stage 1)
103
104
105
103
104
105
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00