is 2 99786779 - 1
has 30038814 decimal digits
takes 380.576 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
Actual277306.735764.9351%7650007650004.23061.3649%310.966265.4137%0.4786%
PrimeNet2729.583862.5000%400000200000008.11755.1978%17.701364.4492%1.9492%
GPU72276153.367064.4737%6500002200000010.02733.8394%163.394265.8377%1.3640%
Difference+1+153.3687+0.4614%+115000-21235000-5.7967-2.4745%+147.5720-0.4240%-0.4240%

Known prime factors (1 factor, 82.3 bits, 0.00008244% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9978677958119711071485476573428332582.26529121949648001704
23 × 13 × 883 × 550801 × 575747
2020-08-2055080157574712,5013.05356.1991

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-08-20T15:39:37Jwb52zClay7650007650002582.2654.231761.28.4611.365%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-11T21:30:001997rj7compa264265--0.037--
2012-07-12T18:41:00Jimmy BrüggemannManual testing265266--0.075--
2013-08-17T09:40:00america64Manual testing266267--0.150--
2013-08-21T09:08:00Risto A. PajuManual testing267268--0.300--
2013-08-21T09:08:00Risto A. PajuManual testing268269--0.599--
2013-08-21T09:08:00Risto A. PajuManual testing269270--1.198--
2013-08-21T09:08:00Risto A. PajuManual testing270271--2.396--
2013-12-09T01:57:00SMoffatManual testing271272--4.793--
2019-03-23T11:42:31Niels_Mache_NextcloudManual testing272273--9.59--
2019-12-23T23:37:17ixfd64Manual testing273274--19.17--
2020-03-23T22:06:01Yves de WandelaarGPU72_TF274275--38.34--
2020-04-29T19:32:57TheJudgerManual testing275276--76.68--
2020-08-19T13:34:06Jon PaceManual testing276277--153.4--


ECM factoring results:
No ECM results for M99786779


Lucas-Lehmer results:
No L-L results for M99786779


PRP results:
No PRP results for M99786779


P-1 factor-bounds graph:
B1 = 765000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
277
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275
274
273
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271
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267
266
265
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2100
Last modified: 2020-08-20T15:39:37+00:00