is 2 108146959 - 1
has 32555479 decimal digits
takes 443.553 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
Actual276141.511164.4737%12000003400000017.76394.5281%159.275066.0824%1.6087%
PrimeNet2728.842962.5000%4500002400000010.30665.4964%19.149564.5611%2.0611%
GPU72276141.511164.4737%7000002400000011.71233.9799%153.223465.8876%1.4139%
Difference---+500000+10000000+6.0516+0.5482%+6.0516+0.1948%+0.1948%

Known prime factors (1 factor, 134.1 bits, 0.00012400% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1081469592336315477369256097086878550320552656129741134.101108015773118930514592041305124472
23 × 17 × 47 × 59 × 4637 × 227627 × 406547 × 537679 × 1241377
2021-12-2153767912413771.214e+93.42566.5076

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-12-21T13:49:10ChuckMaingear_i7-780012000003400000041134.10117.76887.135.534.528%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-26T10:08:00subgeniusgigacare263264--0.018--
2010-11-21T03:26:00sasaki3mate_ma1264265--0.035--
2012-05-22T22:30:00omiXorpLLB03-z800-17265266--0.069--
2014-11-24T08:40:00g0bManual testing266267--0.138--
2015-07-24T12:55:00maxaManual testing267268--0.276--
2015-08-17T07:32:00g0bManual testing268269--0.553--
2015-08-18T05:56:00el groccoManual testing269270--1.106--
2015-08-24T11:22:00OS1L31270271--2.211--
2019-01-20T11:16:53Niels_Mache_NextcloudManual testing271272--4.422--
2019-11-21T10:35:52Niels_Mache_NextcloudManual testing272273--8.845--
2019-11-21T10:35:52Niels_Mache_NextcloudManual testing273274--17.69--
2021-04-17T22:11:36TheJudgerManual testing274275--35.38--
2021-04-17T22:11:37TheJudgerManual testing275276--70.76--


ECM factoring results:
No ECM results for M108146959


Lucas-Lehmer results:
No L-L results for M108146959


PRP results:
No PRP results for M108146959


P-1 factor-bounds graph:
B1 = 1200000, B2 = 34000000 (P-1 stage 2)
B1 = 1200000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
2110
2120
2130
2140
Last modified: 2021-12-21T13:49:10+00:00