is 2 145999199 - 1
has 43950139 decimal digits
takes 837.214 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
Actual2726.550361.1111 %14950004597125032.57917.1557 %39.129463.8939 %
Target277209.646163.6364 %90000017000000084.08834.1339 %293.734465.1396 %
Difference-5-203.0959-2.5253 %+595000-124028750-51.5092+3.0218%-254.6050-1.2457 %

Known prime factors (1 factor, 86.6 bits, 0.00005934% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1459991991199861066136197921756247672786.633410913578414974017
3 × 53 × 1999 × 73361 × 17622817
2020-02-287336117622817107,3398.560214.911

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-02-28timbitManual testing149500045971250622786.63332.584.631%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-20Torchwood InstituteRuth-Lappy2632640.013
2010-12-28Mr-PlonkLinux-i72642650.026
2012-12-30Richardworkmy2652660.051
2015-03-07tscatom2662670.102
2016-03-24DerekManual testing2672680.205
2016-05-18Josh FamestadManual testing2682690.409
2021-05-30ViliamFManual testing268269
2016-06-19Josh FamestadManual testing2692700.819
2016-07-02Mihai PredaManual testing2692700.819
2016-07-28Mihai PredaManual testing2702711.638
2016-08-06Josh FamestadManual testing2712723.276


ECM factoring results:
No ECM results for M145999199


Lucas-Lehmer results:
No L-L results for M145999199


PRP results:
No PRP results for M145999199


CERT results:
No CERT results for M145999199


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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264
this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00