is 2 490208519 - 1
has 147567469 decimal digits
takes 11,856.919 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2733.902160.2740%----3.902160.2740%0.0000%
PrimeNet278124.878562.8205%1800000120000000288.98745.8008%413.865964.9772%2.1567%
GPU722821,998.061564.6341%2800000120000000322.14854.3243%2,320.210066.1635%1.5293%
Difference-9-1,994.1594-4.3602%-2800000-120000000-322.1485-4.3243%-2,316.3079-5.8895%-1.5293%

Known prime factors (2 factors, 131.7 bits, 0.00002686% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
490208519209790793516648564792064.18621398117881
7 × 3056873983
2011-10-19730568739830.00915,841.110,910
4902085192093726477548969453672167.505213554680957
213554680957
2022-09-2212135546809570.1165408,063762,148

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
490208519439244539131815777706703285492155898279340131.690
P-1 results:
No P-1 results for M490208519


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-10-19T02:14:00delta_tManual testing??64.186200.00224,2760.004
2010-04-03T13:40:00Architects CubedManual testing263264--0.004--
2022-09-22T09:43:55TJAOIManual testing267268*67.505210.05624,2760.114
2022-09-25T22:01:34LordJuliusManual testing2126967.505210.11724,2760.239
2022-09-25T22:01:34LordJuliusManual testing2126964.186200.00924,2760.019
2022-09-25T22:01:34LordJuliusManual testing269270--0.244--
2022-09-25T22:01:34LordJuliusManual testing270271--0.488--
2022-09-25T22:01:34LordJuliusManual testing271272--0.976--
2022-09-25T22:01:34LordJuliusManual testing272273--1.951--


ECM factoring results:
No ECM results for M490208519


Lucas-Lehmer results:
No L-L results for M490208519


PRP results:
No PRP results for M490208519


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
273
272
271
270
269
268
264
2
250
260
270
280
290
2100
Last modified: 2022-09-25T22:01:34+00:00