is 2 60141131 - 1
has 18104285 decimal digits
takes 133.605 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
Actual2703.973262.8571 %----3.973262.8571 %
Target27331.805964.3836 %4000007000000013.50334.1542 %45.309365.8632 %
Difference-3-27.8328-1.5264 %-400000-70000000-13.5033-4.1542 %-41.3361-3.0060 %

Known prime factors (1 factor, 72.3 bits, 0.00012023% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6014113158483376952819485361772272.30948621780119848
23 × 13 × 67 × 743 × 9391477
2012-06-29743939147718.0631.65053.0784

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-06-29Craig MeyersManual testing2272.3092.9320.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-07-13Gordon Spencev4_computers212600.001
2022-03-29LordJuliusManual testing260263
2008-11-23MarioKomp2632640.033
2008-11-23ANONYMOUS2642650.062
2008-11-24Sturle Sundedittersdorf.ifi2652660.124
2009-01-18craigfjhome2662670.249
2009-01-19craigfjhome2672680.497
2009-06-27AlexHahn987698752682690.994
2011-07-09TheJudgerManual testing2692701.988


ECM factoring results:
No ECM results for M60141131


Lucas-Lehmer results:
No L-L results for M60141131


PRP results:
No PRP results for M60141131


CERT results:
No CERT results for M60141131


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
TF factor-bounds graph:
270
269
268
267
266
265
264
263
260
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00