is 2 190649 - 1
has 57392 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
Actual267155.856773.1343 %10000000020000000001.360712.2882 %157.217476.4356 %
Target2440.000059.0909 %34003500000.00018.4585 %0.000262.5512 %
Difference+23+155.8567+14.0434 %+99996600+1999650000+1.3606+3.8297%+157.2172+13.8844 %

Known prime factors (3 factors, 230.3 bits, 0.12081879% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19064928597351824.76975
3 × 52
-25251.191e-111.672e-73.402e-7
19064972191401093423431080240678632892.54418933065763110069048419
1439 × 13157099209944453821
2019-12-181439131570992099444538219.928e+94.793e+98.952e+9
1906491057747777708142056513098212056444135113.02727740711404417071595264024780
22 × 5 × 37 × 67 × 1289 × 434068383958487471569
2023-11-2712894340683839584874715696.807e+111.581e+112.953e+11

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-01-10kkmrkkblmbrbkManual testing100000000200000000012
skipped known factor: 28597351
---41.958%


Trial Factoring results:
5758596061626364656667
No TF results for M190649


ECM factoring results:
Total ECM effort:38.108 GHz-days
Estimated T-Level:30.431
DigitsB1CompleteFacMiss
201100063.2380.000%
25500009.3010.009%
302500001.00936.475%
3510000000.08691.745%
4030000000.00699.396%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.370
2500002500000050411.81
2500002500000010.024
2500003600000070.195
25000036755218520.269
25000055133578581.883
93469724810335553222.56


Lucas-Lehmer results:
No L-L results for M190649


PRP results:
dateuseridcompidcofactorsres64
2017-09-22Oliver KruseDoppelherz
28597351
6EB820790755D26C
2017-09-22Oliver KruseManual testing
28597351
6EB820790755D26C
2017-09-22Oliver KruseManual testing
28597351
6EB820790755D26C
2017-11-06kkmrkkblmbrbkc4.xlarge
28597351
6EB820790755D26C
2019-12-19Niels_Mache_NextcloudSuperDry-X
28597351
7219140109342343108024067863
B23AEE50A752E725
2019-12-22GANKL-SCH05
28597351
7219140109342343108024067863
B23AEE50A752E725
2023-08-24USAFSS6917th_Scty_Sq
28597351
7219140109342343108024067863
B23AEE50A752E725
2023-11-27masserAragorn
28597351
7219140109342343108024067863
10577477777081420565130982120564441
B23AEE50A752E725


CERT results:
dateuseridcompid
2023-08-24gregor_krannichC2E92EF9B
2023-11-27curtiscwcm231--32l


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=30.43 ~= 84-bit
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Last modified: 2024-03-13T02:15:48+00:00