is 2 73411021 - 1
has 22098920 decimal digits
takes 202.959 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
Actual27213.027162.5000 %----13.027162.5000 %
Target27452.115763.5135 %5000008500000020.46024.1274 %72.575865.0195 %
Difference-2-39.0886-1.0135 %-500000-85000000-20.4602-4.1274 %-59.5487-2.5195 %

Known prime factors (1 factor, 68.8 bits, 0.00009373% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
734110215162737805737310307772168.8073516323390828
22 × 879080847707
2015-01-2548790808477070.8556192,001358,605

P-1 results:
No P-1 results for M73411021


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2002-05-05Jossv4_computers212570.000
2008-06-28George WoltmanManual testing212640.026
2010-08-06fswebfs75broad22642650.051
2010-08-11Bruce AndersonBA_Laptop2652660.102
2010-08-16Bruce AndersonBA_Laptop2662670.204
2010-08-16sannerud.comJimEmcLap2672691.222
2015-01-25tigreroarsManual testing268269
68.807
21
0.657
2013-05-13ManpowreManual testing2692701.629
2013-11-28nate.andersManual testing2702729.77


ECM factoring results:
No ECM results for M73411021


Lucas-Lehmer results:
No L-L results for M73411021


PRP results:
No PRP results for M73411021


CERT results:
No CERT results for M73411021


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
272
270
269
267
266
265
264
257
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00