is 2 101839219 - 1
has 30656660 decimal digits
takes 405.483 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
Actual276150.276064.4737 %100000010000005.77331.7213 %156.049465.0852 %
Target276150.276064.4737 %65000011000000038.14833.8490 %188.424365.8411 %
Difference---+350000-109000000-32.3750-2.1276 %-32.3750-0.7559 %

Known prime factors (1 factor, 81.3 bits, 0.00007982% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10183921929602480147225298188850712581.29214533929284760765
32 × 5 × 11 × 17761 × 38261 × 43207
2021-01-0138261432077,728.60.22240.4496

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-01-01KrieselManual testing1000000100000012581.2925.8081.721%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-071997rj7compw2632640.019
2010-08-15monstampere2642650.037
2012-04-20Joe BauerEmma2652660.073
2013-08-27SMoffatManual testing2662670.147
2013-08-27RobishManual testing2672690.881
2013-08-30RobishManual testing2692701.174
2013-09-01RobishManual testing2702712.348
2018-11-27el groccoManual testing2712724.696
2020-01-27ixfd64Manual testing27227428.18
2020-01-29TheJudgerManual testing274276112.7


ECM factoring results:
No ECM results for M101839219


Lucas-Lehmer results:
No L-L results for M101839219


PRP results:
No PRP results for M101839219


CERT results:
No CERT results for M101839219


P-1 factor-bounds graph:
B1 = 1000000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
274
272
271
270
269
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00