is 2 99910231 - 1
has 30075977 decimal digits
takes 381.047 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
Actual277306.356764.9351 %7750007750004.28591.3731 %310.642565.4166 %
Target276153.177464.4737 %65000011000000036.54143.8400 %189.718965.8379 %
Difference+1+153.1792+0.4614 %+125000-109225000-32.2556-2.4669 %+120.9236-0.4213 %

Known prime factors (1 factor, 78.9 bits, 0.00007901% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
999102315800486049435413179015112478.9412902848883131605
5 × 263 × 1087 × 42071 × 48271
2020-02-264207148271677.040.23450.4735

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-02-26ktonyMusic77500077500012478.9414.2861.541%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-09-211997rj7compw2642650.037
2012-05-20Jimmy BrüggemanniMac22652660.075
2013-08-16Le ComteManual testing2662670.150
2013-09-12processinfoManual testing2672680.299
2013-09-14ANONYMOUS2682701.795
2013-09-16ANONYMOUS2702712.393
2017-01-19monstManual testing2712724.787
2019-03-15Niels_Mache_NextcloudManual testing2722739.57
2019-12-13ixfd64Manual testing27327419.15
2020-01-29TheJudgerManual testing274276114.9
2020-02-09TheJudgerManual testing276277153.2


ECM factoring results:
No ECM results for M99910231


Lucas-Lehmer results:
No L-L results for M99910231


PRP results:
No PRP results for M99910231


CERT results:
No CERT results for M99910231


P-1 factor-bounds graph:
B1 = 775000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
277
276
274
273
272
271
270
268
267
266
265
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00