is 2 108377323 - 1
has 32624826 decimal digits
takes 475.656 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRPD183E74DED392321PRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual277282.422264.9351%10000003000000016.41883.9511%298.841166.3205%
Target276141.210364.4737%7000002400000012.53343.9809%153.743665.8880%
Difference+1+141.2119+0.4614%+300000+6000000+3.8855-0.0298%+145.0974+0.4326%

Known prime factors:
No known factors for M108377323

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-02-21curtiscjckl3e14023l765000765000---4.868--1.382%
2021-03-03KrieselManual testing100000030000000---16.42--3.951%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-06-27Charles A. Morrismagnetar263264--0.018--
2010-09-10CommasterCore-i7264265--0.034--
2012-05-24RichardUNKNOWN265266--0.069--
2014-07-23technobuffaloskyle-server266267--0.138--
2014-11-11webbertManual testing267268--0.276--
2014-11-13webbertManual testing268269--0.552--
2014-11-14RichD0Manual testing269270--1.103--
2014-11-19RichD0Manual testing270271--2.206--
2019-01-20Niels_Mache_NextcloudManual testing271272--4.413--
2019-10-16Niels_Mache_NextcloudManual testing272273--8.826--
2019-10-16Niels_Mache_NextcloudManual testing273274--17.65--
2021-02-15Tucker KaoManual testing274275--35.30--
2021-02-15Tucker KaoManual testing275276--70.61--
2022-03-08Anton RepkoManual testing276277--141.2--


ECM factoring results:
No ECM results for M108377323


Lucas-Lehmer results:
No L-L results for M108377323


PRP results:
dateuseridcompidcofactorsres64PRP
2021-04-11curtiscjckl3e14023lD183E74DED392321no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 30000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 765000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
277
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67.8
250
260
270
280
Last modified: 2023-04-26T21:34:10+00:00