is 2 2384891 - 1
has 717924 decimal digits
takes 0.161 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
Actual26712.459267.1642 %2000000600000000.50557.6103 %12.964769.6631 %
Target2630.669265.0794 %100007000000.00471.2732 %0.673965.5240 %
Difference+4+11.7900+2.0848 %+1990000+59300000+0.5008+6.3371%+12.2908+4.1391 %

Known prime factors (3 factors, 178.7 bits, 0.00749108% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2384891958726183929.837201
3 × 67
-3673.129e-116.354e-76.354e-7
238489134809364604341321316172271.560729789424429488
24 × 3 × 677 × 6113 × 3673781
2018-05-1861133673781369.220.02020.0366
23848911806621552073188470629672477.25837876396700586913
7 × 431 × 1548179 × 8109091
2018-05-181548179810909116,7040.18670.3086

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-05-19alpertronlaptop220000006000000012245148.8180.50510.518%


Trial Factoring results:
5758596061626364656667
No TF results for M2384891


ECM factoring results:
Total ECM effort:14.974 GHz-days
Estimated T-Level:21.386
DigitsB1CompleteFacMiss
20110002.8855.588%
25500000.27775.795%
302500000.01898.229%


ECM Summary

B1B2factorcurvesGHz-days
500005000000100.896
50000270235355014.08


Lucas-Lehmer results:
No L-L results for M2384891


PRP results:
dateuseridcompidcofactorsres64
2017-10-13kkmrkkblmbrbkc4.xlarge
958726183
D4CFD3743D3D0DC0
2017-11-02Oliver KruseGTX-3
958726183
D4CFD3743D3D0DC0
2018-05-19ATHec2-PRPCF
958726183
3480936460434132131617
180662155207318847062967
D4CFD3743D3D0DC0


CERT results:
No CERT results for M2384891


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=21.39 ~= 54-bit
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280
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Last modified: 2024-03-13T02:15:48+00:00