is 2 15788429 - 1
has 4752791 decimal digits
takes 8.633 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
Actual27015.134565.7143%----15.134565.7143%
Target2697.561765.2174%11000028000000.20343.1190%7.765166.3023%
Difference+1+7.5729+0.4969%-110000-2800000-0.2034-3.1190%+7.3695-0.5880%

Known prime factors (7 factors, 290.8 bits, 0.00184198% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
15788429221038007927.7207
7
-171.134e-121.052e-61.614e-6
1578842912630743211030.23440
23 × 5
2008-09-08889.138e-126.343e-61.291e-5
1578842927471866471031.35587
3 × 29
2008-09-083291.846e-113.502e-64.841e-6
157884294261296987111238.63313495
5 × 2699
2008-09-08526994.455e-90.00010.0002
15788429928186584018171446.3992939452
22 × 19 × 38677
2008-09-0819386777.392e-70.00170.0031
157884293575622882901911548.34511323555
5 × 269 × 8419
2012-05-1226984194.717e-60.00060.0007
157884293237347634251388400812168.13310252279166760
23 × 32 × 5 × 23 × 1238197967
2023-01-192312381979676.627353.48799.90

120 Composite Factors:
P-1 results:
No P-1 results for M15788429


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08Will EdgingtonManual testing??30.234107.84409e-1418.031.63800e-13
2008-09-08Will EdgingtonManual testing??31.355103.41218e-1318.037.12531e-13
2008-09-08Will EdgingtonManual testing??38.633122.13610e-918.034.46061e-9
2008-09-08Will EdgingtonManual testing??46.399141.45482e-718.033.03795e-7
2012-05-12AxonManual testing??48.345152.34159e-618.034.88970e-6
2021-08-06Seth_TrManual testing266267--0.947--
2019-06-20Seth_TrManual testing267268--1.893--
2023-01-19LordJuliusManual testing267268--1.893--
2023-01-19LordJuliusManual testing268269
skipped known factors(?)
--3.786--
2023-01-19LordJuliusManual testing26826968.133212.85217.575.803
2023-01-19LordJuliusManual testing269270--7.573--


ECM factoring results:
No ECM results for M15788429


Lucas-Lehmer results:
No L-L results for M15788429


PRP results:
dateuseridcompidcofactorsres64PRP
2022-11-21Naegi Makoto5950X
221038007
1263074321
2747186647
426129698711
92818658401817
357562288290191
43D58354F93707ABno
2023-01-28Naegi Makoto5950X
221038007
1263074321
2747186647
426129698711
92818658401817
357562288290191
323734763425138840081
43D58354F93707ABno


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
270
269
268
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2023-01-28T02:11:17+00:00