is 2 53124517 - 1
has 15992074 decimal digits
takes 101.773 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
Actual2681.122061.7647 %----1.122061.7647 %
Target27336.006864.3836 %3600006000000010.02613.9128 %46.033065.7771 %
Difference-5-34.8848-2.6189 %-360000-60000000-10.0261-3.9128 %-44.9110-4.0124 %

Known prime factors (1 factor, 83.6 bits, 0.00015739% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
53124517147750986856817958628682492683.611139061016645871772
22 × 23 × 109 × 1063 × 6361 × 2050843
2010-05-206361205084340,4820.32710.5797

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-05-20sirlprsirl912683.6114.2580.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.26000e-5
2000-03-01ANONYMOUSv4_computers212544.52000e-5
2000-05-17ANONYMOUSv4_computers212560.000
2001-07-22ANONYMOUSv4_computers212570.000
2002-06-15ANONYMOUSv4_computers212580.001
2004-04-091997rj7v4_computers212600.001
2008-07-21ANONYMOUSManual testing212640.035
2009-02-14SmegheadsKen-Core-i72642650.070
2009-05-22Sturle Sundegicy.ifi2652660.141
2009-11-26subgeniusHDO-c12662670.281
2009-11-29subgeniusHDO-c12672680.563


ECM factoring results:
No ECM results for M53124517


Lucas-Lehmer results:
No L-L results for M53124517


PRP results:
No PRP results for M53124517


CERT results:
No CERT results for M53124517


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
268
267
266
265
264
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