is 2 190763 - 1
has 57426 decimal digits
takes 0.001 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
Actual267155.763573.1343 %10000000020000000001.360712.2887 %157.124376.4358 %
Target2440.000059.0909 %34003500000.00018.4593 %0.000262.5516 %
Difference+23+155.7635+14.0434 %+99996600+1999650000+1.3606+3.8294%+157.1241+13.8842 %

Known prime factors (1 factor, 18.5 bits, 0.00971961% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
190763381527618.5411
1
-111.831e-136.686e-91.361e-8

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-01-10kkmrkkblmbrbkManual testing100000000200000000012
skipped known factor: 381527
---41.959%


Trial Factoring results:
5758596061626364656667
No TF results for M190763


ECM factoring results:
Total ECM effort:15.214 GHz-days
Estimated T-Level:29.790
DigitsB1CompleteFacMiss
201100063.3490.000%
25500009.1070.011%
302500000.95838.363%
3510000000.07992.420%
4030000000.00599.474%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.370
2500002500000049611.65
25000031250000581.530
25000036000000140.391
25000036755218520.269


Lucas-Lehmer results:
No L-L results for M190763


PRP results:
dateuseridcompidcofactorsres64
2017-09-22Oliver KruseOllaptop
381527
60CD9DE34F8164ED
2017-09-22Oliver KruseManual testing
381527
60CD9DE34F8164ED
2017-10-12kkmrkkblmbrbkc4.xlarge
381527
60CD9DE34F8164ED
2020-04-17Oliver KruseAddPrpType5
381527
B22F1ABCD9B2F8FF
2022-05-12Jorge CoveiroManual testing
381527
B22F1ABCD9B2F8FF
2023-08-24USAFSS6917th_Scty_Sq
381527
B22F1ABCD9B2F8FF


CERT results:
dateuseridcompid
2023-08-24Noodles3900X


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
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102
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105
106
107
108
100
101
102
103
104
105
106
107
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109
1010
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=29.79 ~= 82-bit
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290
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Last modified: 2024-03-13T02:15:48+00:00