is 2 149999807 - 1
has 45154442 decimal digits
takes 865.103 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
Actual27425.505862.1622 %1923000192300016.08142.8734 %41.587263.2494 %
Target277204.054763.6364 %100000018000000089.91894.2453 %293.973665.1801 %
Difference-3-178.5489-1.4742 %+923000-178077000-73.8375-1.3718 %-252.3864-1.9307 %

Known prime factors (1 factor, 88.3 bits, 0.00005888% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1499998073880878780469165025132423512788.3271293627924624318025
52 × 37 × 227 × 367 × 8867 × 1893211
2021-02-0588671893211417,9060.93271.6111

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-02-05timbitManual testing1923000192300012788.32715.992.110%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-10Mr-PlonkLinux-i72642650.025
2013-01-17Richard172.26.176.512652660.050
2015-03-18el groccoManual testing2662670.100
2016-03-26DerekManual testing2672680.199
2016-04-17La GüiraManual testing2682690.399
2016-04-17La GüiraManual testing2692700.797
2017-08-16proxy2222Manual testing2702711.594
2017-08-23Damian Silvestrecamp12712723.188
2017-08-31pussijussi2722736.377
2020-10-27ViliamFManual testing27327412.75


ECM factoring results:
No ECM results for M149999807


Lucas-Lehmer results:
No L-L results for M149999807


PRP results:
No PRP results for M149999807


CERT results:
No CERT results for M149999807


P-1 factor-bounds graph:
B1 = 1923000 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
this exponent TF target: 77
TF double-checked to: 67
250
260
270
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290
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Last modified: 2024-03-13T02:15:48+00:00