is 2 30198901 - 1
has 9090776 decimal digits
takes 31.457 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L72EF576DEF0DD001double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual274126.688966.2162 %650627130125402.00003.6301 %128.688967.4426 %
Target27115.831064.7887 %200000300000002.75443.5630 %18.585466.0433 %
Difference+3+110.8579+1.4275 %+450627-16987460-0.7544+0.0670%+110.1035+1.3993 %

Known prime factors (1 factor, 106.9 bits, 0.00035392% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3019890114921872854572466113772635590143133106.8792470598657641956260887215
3 × 5 × 11 × 19 × 61 × 3203 × 25339 × 40493 × 3931049
2020-08-024049339310495.694e+90.38130.6042

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2006-09-11ANONYMOUSv4_computers435000435000--0.6571.792%
2020-08-02GdSManual testing6506271301254012233106.8792.0004.847%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-12-07Alex Kruppav4_computers212547.95000e-5
2001-09-16Net_Forcev4_computers212560.000
2003-07-06AxelFoxv4_computers212600.003
2004-12-131997rj7v4_computers212620.010
2005-10-04tscv4_computers212680.990
2012-02-17XyzzyManual testing2682691.980
2013-11-26NesowaManual testing2692703.959
2017-07-05ramgeisManual testing2702717.918
2019-12-13ANONYMOUSManual testing27127347.51
2020-04-14ANONYMOUSManual testing27327463.35


ECM factoring results:
No ECM results for M30198901


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2007-02-05ANONYMOUSv4_computersC599E3EB83F2B55031.46
2012-09-24ANONYMOUS72EF576DEF0DD00135.74
2012-10-05SignalsManual testing72EF576DEF0DD00135.74


PRP results:
No PRP results for M30198901


CERT results:
No CERT results for M30198901


P-1 factor-bounds graph:
B1 = 650627, B2 = 13012540 (P-1 stage 2)
B1 = 650627 (P-1 stage 1)
B1 = 435000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
274
273
271
270
269
268
262
260
256
254
this exponent TF target: 71
TF double-checked to: 67
250
260
270
280
290
2100
2110
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00