is 2 448228951 - 1
has 134930360 decimal digits
takes 9,913.953 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
Actual2680.133057.3529%----0.133057.3529%0.0000%
PrimeNet278136.574262.8205%1700000120000000261.22975.7108%397.803964.9438%2.1233%
GPU722822,185.193064.6341%2600000120000000288.52124.2470%2,473.714266.1361%1.5020%
Difference-14-2,185.0600-7.2812%-2600000-120000000-288.5212-4.2470%-2,473.5812-8.7832%-8.7832%

Known prime factors (2 factors, 133.0 bits, 0.00002967% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
448228951537770283280708149112065.54459988347705
5 × 11 × 13 × 83899787
2014-09-0313838997870.0304146.60273.81
4482289512003313846518132971992167.441223469930049
3 × 977 × 1667 × 45737
2022-08-031667457370.11490.13050.1493

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
4482289511077322654742221454921233097790176373428941132.985
P-1 results:
No P-1 results for M448228951


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-09-03T14:12:00KayJongsma??65.544200.01420,3180.029
2010-03-22T12:33:00Architects CubedManual testing263264--0.004--
2011-11-25T16:46:00sasaki3HOME2264265--0.008--
2022-08-03T11:21:30TJAOIManual testing267268*67.441210.04920,3170.100
2022-08-10T19:29:47LordJuliusManual testing2126867.441210.11520,3170.236
2022-08-10T19:29:47LordJuliusManual testing2126865.544200.03020,3180.062


ECM factoring results:
No ECM results for M448228951


Lucas-Lehmer results:
No L-L results for M448228951


PRP results:
No PRP results for M448228951


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
265
264
2
250
260
270
280
290
2100
Last modified: 2022-08-10T19:29:47+00:00