is 2 45548611 - 1
has 13711499 decimal digits
takes 73.104 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L49EAB1713E96ED5Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27483.995264.8649 %1500000300000007.10444.9160 %91.099766.5921 %
Target27220.995963.8889 %320000500000007.04384.0276 %28.039765.3433 %
Difference+2+62.9993+0.9760 %+1180000-20000000+0.0606+0.8884%+63.0600+1.2488 %

Known prime factors (1 factor, 97.8 bits, 0.00021482% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
455486112848828902308089436833330870813097.8463127240150427517358140
22 × 32 × 5 × 2371 × 29383 × 146299 × 1704589
2020-04-051462991704589713,786,7140.53800.6929

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-01-19ANONYMOUSv4_computers775000775000--2.0862.159%
2020-04-05Sid & AndyPterodactyl1500000300000001223097.8467.1055.871%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-12-07Jossv4_computers212560.000
2007-05-121997rj7v4_computers212630.022
2007-12-31ANONYMOUSv4_computers212680.656
2014-08-12VictordeHollanderManual testing2682691.312
2015-08-22Mark RoseManual testing2692702.625
2015-11-06ANONYMOUSManual testing27027215.75
2018-02-18ANONYMOUSManual testing27227321.00
2019-12-22ANONYMOUSManual testing27327442.00


ECM factoring results:
No ECM results for M45548611


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2009-02-22ANONYMOUSv4_computers49EAB1713E96ED5E79.08
2016-02-19gbytesWorkComputer49EAB1713E96ED5E73.11


PRP results:
No PRP results for M45548611


CERT results:
No CERT results for M45548611


P-1 factor-bounds graph:
B1 = 1500000, B2 = 30000000 (P-1 stage 2)
B1 = 1500000 (P-1 stage 1)
B1 = 775000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
TF factor-bounds graph:
274
273
272
270
269
268
263
256
this exponent TF target: 72
TF double-checked to: 67
250
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2100
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Last modified: 2024-03-13T02:15:48+00:00