is 2 490190501 - 1
has 147562045 decimal digits
takes 11,856.483 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
Actual2680.121657.3529%----0.121657.3529%0.0000%
PrimeNet278124.883162.8205%1800000120000000288.98745.8007%413.870564.9772%2.1567%
GPU722821,998.134964.6341%2800000120000000322.14854.3243%2,320.283466.1635%1.5293%
Difference-14-1,998.0134-7.2812%-2800000-120000000-322.1485-4.3243%-2,320.1618-8.8105%-8.8105%

Known prime factors (3 factors, 198.4 bits, 0.00004047% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
490190501431319164921759867932065.22543995055396
22 × 14303 × 768983
2011-10-18143037689830.01891.94372.7444
490190501604042060988726135032065.71161612991251
7 × 17 × 6529 × 79301
2011-10-186529793010.01930.36800.4660
4901905012000957604248903707512167.439204099997875
3 × 53 × 67 × 8123383
2022-08-0312581233830.104415.52628.991

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
490190501260534917323276100347223922364192146587940130.937
490190501863051362908482412065712409921704949154340132.665
4901905011208662555221571626633884739440999885075341133.151
49019050152131932399036874603881949434113476564475298914335
3706105129
60198.376
P-1 results:
No P-1 results for M490190501


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-10-18T02:07:00delta_tManual testing??65.225200.00424,2750.008
2011-10-18T02:07:00delta_tManual testing??65.711200.00424,2750.009
2010-04-03T13:26:00Architects CubedManual testing263264--0.004--
2022-08-03T11:15:44TJAOIManual testing267268*67.439210.04424,2750.090
2022-08-10T19:29:47LordJuliusManual testing2126867.439210.10424,2750.214
2022-08-10T19:29:47LordJuliusManual testing2126865.225200.01924,2750.039
2022-08-10T19:29:47LordJuliusManual testing2126865.711200.01924,2750.040


ECM factoring results:
No ECM results for M490190501


Lucas-Lehmer results:
No L-L results for M490190501


PRP results:
No PRP results for M490190501


P-1 factor-bounds graph:
101
102
103
104
105
101
102
103
104
105
106
107
TF factor-bounds graph:
268
264
2
250
260
270
280
290
2100
Last modified: 2022-08-10T19:29:47+00:00