is 2 61839119 - 1
has 18615430 decimal digits
takes 145.265 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
Actual27330.932664.3836%5800005800001.97561.7889%32.908265.0207%0.6372%
PrimeNet2703.864162.8571%260000120000003.06435.1409%6.928364.7666%1.9095%
GPU7227461.868164.8649%400000130000003.70073.7206%65.568866.1721%1.3072%
Difference-1-30.9355-0.4813%+180000-12420000-1.7252-1.9316%-32.6606-1.1514%-1.1514%

Known prime factors (1 factor, 74.2 bits, 0.00011999% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
61839119217389277578820136205832374.203175770031247389
53 × 2027 × 37853 × 43223
2013-07-213785343223121.180.12990.2624

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-07-21T17:38:00Jwb52zClay5800005800002374.2031.976290.53.9511.789%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-06-17T00:00:00ANONYMOUSv4_computers21259--0.001--
2003-11-28T00:00:00ANONYMOUSv4_computers21260--0.002--
2004-04-09T00:00:00ANONYMOUSv4_computers21262--0.010--
2022-03-29T23:12:16LordJuliusManual testing262263--0.016--
2009-02-09T12:24:00WorknPlayWnP_Q6600-1263264--0.032--
2009-02-13T07:44:00ANONYMOUS264265--0.060--
2009-02-16T09:00:00curtiscwde2610-01l265266--0.121--
2009-02-17T13:29:00WorknPlayWnP_Dual-Xeon1800266267--0.242--
2009-02-19T02:33:00WorknPlayWnP_Dual-Xeon1800267268--0.483--
2009-09-24T19:57:00wurkfurCooler_Master268269--0.967--
2012-04-28T22:41:00XyzzyManual testing269270--1.933--
2012-04-28T22:41:00XyzzyManual testing270271--3.867--
2013-02-13T00:57:00monstManual testing271272--7.734--
2013-02-18T01:44:00Jerry HallettManual testing272273--15.47--


ECM factoring results:
No ECM results for M61839119


Lucas-Lehmer results:
No L-L results for M61839119


PRP results:
No PRP results for M61839119


P-1 factor-bounds graph:
B1 = 580000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
263
262
260
259
250
260
270
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290
2100
Last modified: 2022-03-29T23:12:16+00:00