is 2 146000431 - 1
has 43950510 decimal digits
takes 837.221 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
Actual27426.204562.1622 %14950004597125032.57916.0291 %58.783664.4434 %
Target277209.644363.6364 %90000017000000084.08834.1339 %293.732665.1396 %
Difference-3-183.4399-1.4742 %+595000-124028750-51.5092+1.8952%-234.9490-0.6962 %

Known prime factors (1 factor, 79.2 bits, 0.00005426% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1460004317046974295676260999399772479.2212413340237220348
22 × 3 × 491 × 25603 × 15997973
2020-03-162560315997973838.587.448613.536

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-03-16timbitManual testing149500045971250622479.22132.584.631%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-28Torchwood InstituteCCI_PH2_9552642650.026
2012-12-26sasaki3old-home2652660.051
2015-03-05aurashiftusslcburnin322662670.102
2016-03-24DerekManual testing2672680.205
2016-05-16d3zorggen3-perf-12682690.409
2016-05-17DerekManual testing2692700.819
2016-05-17DerekManual testing2702711.638
2016-11-27Sergey NosovManual testing2712723.276
2018-12-19mikrManual testing2722736.551
2018-12-19mikrManual testing27327413.10


ECM factoring results:
No ECM results for M146000431


Lucas-Lehmer results:
No L-L results for M146000431


PRP results:
No PRP results for M146000431


CERT results:
No CERT results for M146000431


P-1 factor-bounds graph:
B1 = 1495000, B2 = 45971250 (P-1 stage 2)
B1 = 1495000 (P-1 stage 1)
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108
TF factor-bounds graph:
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270
269
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this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00