is 2 6978703 - 1
has 2100799 decimal digits
takes 1.522 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
Actual2674.257865.6716 %600000128047689022.237411.1310 %26.495269.4927 %
Target2674.257865.6716 %4500045000000.09102.2394 %4.348866.4404 %
Difference---+555000+1275976890+22.1464+8.8916%+22.1464+3.0523 %

Known prime factors (1 factor, 41.2 bits, 0.00059044% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
697870325350138647511341.205181625
53 × 1453
-12514535.511e-86.240e-58.044e-5

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2024-01-01Stef42Manual testing6000001280476890
skipped known factor: 2535013864751
--20.6811.131%


Trial Factoring results:
5758596061626364656667
No TF results for M6978703


ECM factoring results:
No ECM results for M6978703


Lucas-Lehmer results:
No L-L results for M6978703


PRP results:
dateuseridcompidcofactorsres64
2018-01-28Oliver KruseGTX-7
2535013864751
2A9051B1E7494D2F
2019-02-18arnaudstm-11-010
2535013864751
2A9051B1E7494D2F


CERT results:
No CERT results for M6978703


P-1 factor-bounds graph:
B1 = 600000, B2 = 1280476890 (P-1 stage 2)
B1 = 600000 (P-1 stage 1)
101
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106
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
this exponent TF target: 67
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00