is 2 57543253 - 1
has 17322246 decimal digits
takes 121.960 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
Actual27216.619463.8889 %----16.619463.8889 %
Target27333.241964.3836 %4000006500000012.04574.0733 %45.287565.8343 %
Difference-1-16.6225-0.4947 %-400000-65000000-12.0457-4.0733 %-28.6681-1.9454 %

Known prime factors (1 factor, 75.6 bits, 0.00013134% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
57543253563403212009531824193992375.577489547586064983
47 × 331 × 41911 × 750829
2012-05-1941911750829192.360.24750.2621

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-05-19shanminc.n512375.5773.9430.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.09000e-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
2009-01-10ANONYMOUS2632640.034
2009-01-17Marvuzziah2642650.065
2009-01-24flouranBarn2Robotics2652660.130
2009-02-11ANONYMOUSv4_computers212718.052
2009-03-02ANONYMOUSv4_computers212714.156
2011-11-15dmaineManual testing2712728.311


ECM factoring results:
No ECM results for M57543253


Lucas-Lehmer results:
No L-L results for M57543253


PRP results:
No PRP results for M57543253


CERT results:
No CERT results for M57543253


P-1 factor-bounds graph:
103
104
105
103
104
105
106
TF factor-bounds graph:
272
271
266
265
264
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