is 2 57168383 - 1
has 17209399 decimal digits
takes 121.165 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
Actual2718.362663.3803 %----8.362663.3803 %
Target27333.459864.3836 %4000006500000012.04574.0699 %45.505565.8331 %
Difference-2-25.0972-1.0033 %-400000-65000000-12.0457-4.0699 %-37.1428-2.4528 %

Known prime factors (1 factor, 94.7 bits, 0.00016560% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
57168383314859695627806436325400630092994.669275379221087822648688
24 × 3 × 103 × 233 × 4337 × 223241 × 246907
2012-03-14223241246907116,475,3310.69001.3963

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-03-14CalmTaji2994.6691.8440.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.10000e-5
2000-03-08ANONYMOUSv4_computers212544.20000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2001-09-22ANONYMOUSv4_computers212570.000
2002-10-26ANONYMOUSv4_computers212580.001
2003-07-30Team Prime Ribv4_computers212600.001
2022-06-27LordJuliusManual testing260263
2008-09-13Sturle Sundecelair.ifi2632640.033
2008-09-13Sturle Sundedittersdorf.ifi2642660.196
2008-09-14Sturle Sundedittersdorf.ifi2662670.261
2009-05-25SAHS Science DeptChem_012672680.523
2011-04-25Helmut Zulusz52682691.046
2011-06-12Michael CManual testing2692702.091
2012-03-09ANONYMOUSade2702714.183


ECM factoring results:
No ECM results for M57168383


Lucas-Lehmer results:
No L-L results for M57168383


PRP results:
No PRP results for M57168383


CERT results:
No CERT results for M57168383


P-1 factor-bounds graph:
104
105
106
104
105
106
TF factor-bounds graph:
271
270
269
268
267
266
264
263
260
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
290
2100
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00