is 2 4844951 - 1
has 1458476 decimal digits
takes 0.672 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
Actual2676.133065.6716%----6.133065.6716%0.0000%
PrimeNet2610.063462.2951%200004500000.00873.2297%0.072163.5129%1.2178%
GPU722651.505864.6154%320006500000.01322.3258%1.519065.4384%0.8230%
Difference+2+4.6271+1.0563%-32000-650000-0.0132-2.3258%+4.6139+0.2333%+0.2333%

Known prime factors (4 factors, 218.3 bits, 0.00450580% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4844951372189135831135.1153841
23 × 167
-231671.730e-96.200e-69.408e-6
48449512019846893633291547.52120844864
26 × 34 × 4021
2014-03-078140217.257e-65.942e-58.223e-5
4844951647631850693047355132065.8126683574825556
22 × 1670893706389
2019-05-21416708937063892.512718,29734,173
484495110681511645648802969612269.856110233433172480
29 × 3 × 5 × 41 × 73 × 4795627
2019-06-25512479562730.4100.05260.0981

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
484495175176506985028413401978072582.637
4844951241041538845428881695101817307931100.927
48449513975542588752109156933083652126332104.971
48449511308117181840330371686598070620277735113.333
484495121575018116771546157408862354354316936117.377
48449516917687155270872112301214749438700267599341135.667
484495148686700347352753007973763549670646923761999145148.448
4844951802998734839779579385896163165055244464096452746152.492
484495125746880042625569210478358302528398301561732157129
19
52170.783
484495113972668911700781707993446291778768518140749166442
860697
56183.189
484495152004755674846205194335521786406578883084151105671
6115788950147351
66218.304
P-1 results:
No P-1 results for M4844951


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-03-07T11:24:00TJAOIManual testing??47.521153.38730e-61.4287.20376e-6
2019-05-21T13:16:07TJAOIManual testing265266*65.812201.0071.3652.046


ECM factoring results:

Old Calculation Method

Total ECM effort:0.209 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.209 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.209


Lucas-Lehmer results:
No L-L results for M4844951


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:30:05kkmrkkblmbrbkManual testing
37218913583
201984689363329
535A8D61811612__no
2018-03-29T22:54:37Oliver KruseGTX-2
37218913583
201984689363329
535A8D61811612__no
2019-05-23T04:42:15fre_gamesgpu
37218913583
201984689363329
64763185069304735513
DC00689FBFE93822no
2019-05-27T04:50:50Chang Chia-Tcheexbpc13
37218913583
201984689363329
64763185069304735513
DC00689FBFE93822no
2019-06-26T17:40:16Niels_Mache_NextcloudSuperDry-X
37218913583
201984689363329
64763185069304735513
1068151164564880296961
DC00689FBFE93822no


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
267
266
2
230
240
250
260
270
280
290
2100
Last modified: 2019-06-26T17:40:16+00:00