is 2 57076757 - 1
has 17181816 decimal digits
takes 120.971 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
Actual2718.376163.3803 %----8.376163.3803 %
Target27333.513564.3836 %4000006500000012.04574.0691 %45.559265.8328 %
Difference-2-25.1375-1.0033 %-400000-65000000-12.0457-4.0691 %-37.1831-2.4526 %

Known prime factors (1 factor, 75.1 bits, 0.00013158% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
57076757404554223420159895241372375.099354394892670724
22 × 37 × 103 × 131 × 8081 × 21961
2012-02-10808121961191.640.02720.0505

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-02-10Pawlo2021polo20122375.0991.7820.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.10000e-5
2000-03-08ANONYMOUSv4_computers212544.20000e-5
2000-06-11ANONYMOUSv4_computers212560.000
2001-09-22ANONYMOUSv4_computers212570.000
2002-10-19ANONYMOUSv4_computers212580.001
2003-07-30Team Prime Ribv4_computers212600.001
2022-06-27LordJuliusManual testing260263
2008-09-08Sturle Sundeklengel.ifi2632640.033
2008-09-09BoulderManual testing2642650.065
2008-11-04Lars FrickeM20082652660.131
2008-11-05Lars FrickeM20082662670.262
2009-05-26Sturle Sundeghia.ifi2672680.524
2011-04-20Eric LandquistMAT-102682691.047
2011-06-13Tom DuellManual testing2692702.095
2012-01-08OlivierZZZ2702714.190


ECM factoring results:
No ECM results for M57076757


Lucas-Lehmer results:
No L-L results for M57076757


PRP results:
No PRP results for M57076757


CERT results:
No CERT results for M57076757


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
271
270
269
268
267
266
265
264
263
260
258
257
256
254
253
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