is 2 53952599 - 1
has 16241351 decimal digits
takes 106.594 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
Actual2681.104861.7647 %----1.104861.7647 %
Target27335.454264.3836 %3600006000000010.33993.9205 %45.794165.7799 %
Difference-5-34.3494-2.6189 %-360000-60000000-10.3399-3.9205 %-44.6893-4.0152 %

Known prime factors (1 factor, 71.1 bits, 0.00013182% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5395259925618278300217847551272271.11823741468228637
32 × 31 × 53 × 113 × 167 × 85081
2011-04-211678508117.1440.01370.0248

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-04-21DRHDRH102271.1181.8620.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.22000e-5
2000-03-01ANONYMOUSv4_computers212544.45000e-5
2000-05-31ANONYMOUSv4_computers212560.000
2001-08-24ANONYMOUSv4_computers212570.000
2002-08-10ANONYMOUSv4_computers212580.001
2004-06-211997rj7v4_computers212600.001
2007-10-291997rj7v4_computers212630.018
2008-09-22ANONYMOUSManual testing212640.035
2008-12-22ANONYMOUS2642650.069
2009-01-05ThaRietmaat2652660.139
2009-01-06S36049Wolle42662670.277
2009-05-01KonradWORK22672680.554


ECM factoring results:
No ECM results for M53952599


Lucas-Lehmer results:
No L-L results for M53952599


PRP results:
No PRP results for M53952599


CERT results:
No CERT results for M53952599


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
TF factor-bounds graph:
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