is 2 79423907 - 1
has 23908979 decimal digits
takes 247.841 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
Actual27596.342664.0000%6650006650003.00891.5632%99.351664.5627%0.5627%
PrimeNet2716.019361.9718%340000160000005.39895.2422%11.418263.9653%1.9935%
GPU7227596.342664.0000%500000170000006.32993.7794%102.672565.3606%1.3606%
Difference---+165000-16335000-3.3210-2.2162%-3.3210-0.7978%-0.7978%

Known prime factors (1 factor, 90.9 bits, 0.00011449% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7942390723576135515419847812912342492890.92914841964092385840332
22 × 3 × 13 × 61 × 67 × 137 × 743 × 7877 × 29033
2016-09-297877290334,682,2420.04090.0725

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-09-30T03:18:24Jwb52zClay6650006650002890.9293.009495.76.0181.563%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-05-29T10:45:00Architects Cubedm1_17263264--0.025--
2010-11-26T23:49:00Xyzzy264265--0.047--
2011-02-22T02:36:00Jason Bartholomewnetbook265266--0.094--
2011-02-26T13:36:00Cloudy WaterACER266267--0.188--
2011-03-03T07:09:00Cloudy WaterACER267268--0.376--
2011-03-10T08:34:00Cloudy WaterACER268269--0.753--
2011-03-11T08:10:00ptcrptcr-home269270--1.505--
2014-02-28T05:15:00Smok_bmvManual testing270271--3.011--
2016-02-22T02:45:30GregManual testing271272--6.022--
2016-08-12T21:42:01RichD0Manual testing272273--12.04--
2016-09-21T00:33:35RichD0Manual testing273275--72.26--


ECM factoring results:
No ECM results for M79423907


Lucas-Lehmer results:
No L-L results for M79423907


PRP results:
No PRP results for M79423907


P-1 factor-bounds graph:
B1 = 665000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
275
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
Last modified: 2016-09-30T03:18:24+00:00