is 2 65679853 - 1
has 19771606 decimal digits
takes 159.319 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
Actual27458.250264.8649%580000102950003.90173.7561%62.151966.1846%1.3197%
PrimeNet2703.638162.8571%280000130000003.42245.3059%7.060564.8279%1.9708%
GPU7227458.250264.8649%450000150000004.37103.9186%62.621266.2417%1.3768%
Difference---+130000-4705000-0.4693-0.1626%-0.4693-0.0571%-0.0571%

Known prime factors (2 factors, 179.4 bits, 0.00027312% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6567985319698546260187986351313132580.70414995881811876152
23 × 3 × 11 × 571 × 11437 × 8698009
2013-07-081143786980095,432.51.70483.1131
656798535077370831036827737554443705513098.6803865242231157877087175
32 × 52 × 7 × 163 × 54163 × 126229 × 2202149
2013-07-0812622922021491.133e+90.84180.9036

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
6567985310001682419530807136865767652287555929809416645151
63463
55179.384
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-07-08T04:10:00Jwb52zClay5800001029500055179.3843.902318.67.8033.756%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-11-16T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-07-13T00:00:001997rj7v4_computers21260--0.002--
2022-03-30T15:47:22LordJuliusManual testing260263--0.022--
2009-01-20T06:46:00Wojciech FlorekManual testing263264--0.030--
2009-03-22T07:53:00Sturle Sundeginjtje.ifi264265--0.057--
2009-11-02T20:33:00Penguin66coldcomputing265266--0.114--
2009-11-06T16:25:00ANONYMOUS266267--0.228--
2009-11-07T23:35:00Loïc EvannoC8CDB759B267268--0.455--
2009-11-14T04:18:00symalladold_laptop268269--0.910--
2013-03-27T03:11:00marssystemsManual testing269270--1.820--
2013-03-27T03:11:00marssystemsManual testing270271--3.641--
2013-03-27T03:11:00marssystemsManual testing271272--7.282--
2013-03-27T03:11:00marssystemsManual testing272273--14.56--
2013-05-03T22:40:00Jerry HallettManual testing273274--29.13--


ECM factoring results:
No ECM results for M65679853


Lucas-Lehmer results:
No L-L results for M65679853


PRP results:
No PRP results for M65679853


P-1 factor-bounds graph:
B1 = 580000, B2 = 10295000 (P-1 stage 2)
B1 = 580000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
263
260
259
250
260
270
280
290
2100
Last modified: 2022-03-30T15:47:22+00:00