is 2 141999617 - 1
has 42746145 decimal digits
takes 790.859 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
Actual2726.734861.1111 %1455000145500011.75013.1786 %18.484962.3472 %
Target277215.551063.6364 %90000016000000077.26994.0749 %292.821065.1182 %
Difference-5-208.8163-2.5253 %+555000-158545000-65.5198-0.8964 %-274.3361-2.7709 %

Known prime factors (1 factor, 82.1 bits, 0.00005779% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
14199961750274597176870683587516012582.05617702370696137400
23 × 33 × 52 × 7 × 13 × 17 × 47 × 223 × 202183
2019-08-102232021836,897.70.09070.1661

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-08-10timbitManual testing1455000145500012582.05611.751.881%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-16oodairaWin022632640.014
2010-12-20vapaddyemily2642650.026
2012-12-13Richardsvn_022652660.053
2015-02-22tscap2662670.105
2016-03-25dbaughManual testing2672680.211
2016-04-07Mihai PredaManual testing2682690.421
2016-04-15Mihai PredaManual testing2692700.842
2016-04-18Mihai PredaManual testing2702711.684
2016-04-24Mihai PredaManual testing2712723.368


ECM factoring results:
No ECM results for M141999617


Lucas-Lehmer results:
No L-L results for M141999617


PRP results:
No PRP results for M141999617


CERT results:
No CERT results for M141999617


P-1 factor-bounds graph:
B1 = 1455000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00