is 2 57570319 - 1
has 17330393 decimal digits
takes 122.017 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
Actual2704.150662.8571 %----4.150662.8571 %
Target27333.226264.3836 %4000006500000012.04574.0735 %45.271965.8344 %
Difference-3-29.0756-1.5264 %-400000-65000000-12.0457-4.0735 %-41.1213-2.9773 %

Known prime factors (1 factor, 70.9 bits, 0.00012308% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5757031921366251452989091616392270.85618556655429501
7 × 2650950775643
2011-06-30726509507756435.4282443,865829,016

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-06-30UngelovendeManual testing2270.8562.4590.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.08000e-5
2000-03-08ANONYMOUSv4_computers212544.17000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2001-09-30ANONYMOUSv4_computers212570.000
2002-11-24ANONYMOUSv4_computers212580.001
2003-08-25Team Prime Ribv4_computers212600.001
2022-06-28LordJuliusManual testing260263
2009-03-11searchingforprimesHarwich6b2632640.034
2009-03-14Idan_Shifres2642650.065
2009-03-17Idan_Shifres2652660.130
2009-03-22Idan_Shifres2662670.260
2009-08-29trifdrake2672680.519
2011-04-26symalladSchool_Laptop2682691.038
2011-06-30UngelovendeManual testing2692702.077


ECM factoring results:
No ECM results for M57570319


Lucas-Lehmer results:
No L-L results for M57570319


PRP results:
No PRP results for M57570319


CERT results:
No CERT results for M57570319


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
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