is 2 57454357 - 1
has 17295485 decimal digits
takes 121.771 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
Actual27333.293364.3836 %----33.293364.3836 %
Target27333.293364.3836 %4000006500000012.04574.0725 %45.338965.8340 %
Difference----400000-65000000-12.0457-4.0725 %-12.0457-1.4505 %

Known prime factors (2 factors, 163.8 bits, 0.00028516% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
574543572172010403237708134095132477.5231890205126860708
22 × 32 × 72 × 792 × 4483 × 38299
2012-10-06624138299697.400.02450.0390
57454357960237394839626067671385532686.312835652372577789068
22 × 37 × 47 × 823 × 312757 × 466723
2012-10-06312757466723372,4230.98691.9561

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-10-06TheJudgerManual testing50163.8352.4590.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.09000e-5
2000-03-08ANONYMOUSv4_computers212544.18000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2001-09-22ANONYMOUSv4_computers212570.000
2002-11-16ANONYMOUSv4_computers212580.001
2003-08-25Team Prime Ribv4_computers212600.001
2009-01-17PrimeCruncherv4_computers212692.050
2009-01-27PrimeCruncherv4_computers212691.041
2011-09-28XyzzyManual testing2692716.243
2011-11-18phoenicisManual testing2712728.324
2012-09-03AxelssonManual testing27227316.65


ECM factoring results:
No ECM results for M57454357


Lucas-Lehmer results:
No L-L results for M57454357


PRP results:
No PRP results for M57454357


CERT results:
No CERT results for M57454357


P-1 factor-bounds graph:
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
273
272
271
269
260
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00