is 2 143793077 - 1
has 43286030 decimal digits
takes 800.848 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
Actual276106.430763.1579 %5000001500000010.41763.6003 %116.848364.4843 %
Target277212.862663.6364 %90000017000000081.66984.1265 %294.532465.1369 %
Difference-1-106.4319-0.4785 %-400000-155000000-71.2521-0.5262 %-177.6840-0.6526 %

Known prime factors (1 factor, 119.7 bits, 0.00008325% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
143793077108989189950514760602809552610247484937119.7143789792673763937905119366512
24 × 33 × 929 × 5189 × 8167 × 24113 × 75083 × 123077
2019-09-0575083123077892,815,5270.62751.2340

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-09-05Franklin WebberManual testing50000015000000237119.71410.913.259%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-18Torchwood InstitutePhenom95502632640.014
2010-12-23Richardworkmy2642650.026
2012-12-16sasaki3mate_ma12652660.052
2015-02-27aurashiftusslcburnin322662670.104
2016-03-31dbaughManual testing2672680.208
2016-04-18DerekManual testing2682690.416
2017-02-13JoDuManual testing2692700.831
2017-03-17p1erssonManual testing2702711.663
2017-03-20p1erssonManual testing2712723.326
2019-04-16Franklin WebberManual testing2722736.652
2019-04-16Franklin WebberManual testing27327413.30
2019-04-16Franklin WebberManual testing27427526.61
2019-04-16Franklin WebberManual testing27527653.22


ECM factoring results:
No ECM results for M143793077


Lucas-Lehmer results:
No L-L results for M143793077


PRP results:
No PRP results for M143793077


CERT results:
No CERT results for M143793077


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00