is 2 103750501 - 1
has 31232013 decimal digits
takes 413.093 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-
PRPD0ECA27493CC246DPRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual276147.507764.4737%8240004631200019.06534.5509%166.573066.0904%
Target276147.507764.4737%65000017600000058.90833.8577%206.416065.8442%
Difference---+174000-129688000-39.8430+0.6932%-39.8430+0.2463%

Known prime factors:
No known factors for M103750501

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-05-11Chun sung sooAMD82400046312000---19.07--4.551%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-17Donna NoblePhenom9550263264--0.019--
2010-08-24sasaki3mate_ma2264265--0.036--
2012-05-01sannerud.comJarrett2012265266--0.072--
2013-09-03Choi4KANGCarTest266267--0.144--
2014-05-09David Barleyken2267268--0.288--
2014-10-09g0bManual testing268269--0.576--
2014-10-28ANONYMOUS269270--1.152--
2014-11-03ITSMasterStation270271--2.305--
2015-01-08SMoffatManual testing271272--4.610--
2019-09-11Niels_Mache_NextcloudManual testing272273--9.219--
2019-09-11Niels_Mache_NextcloudManual testing273274--18.44--
2021-01-17dcheukManual testing274275--36.88--
2021-01-191997rj7Manual testing275276--73.75--


ECM factoring results:
No ECM results for M103750501


Lucas-Lehmer results:
No L-L results for M103750501


PRP results:
dateuseridcompidcofactorsres64PRP
2021-05-19David KirkbyjackdawD0ECA27493CC246Dno


P-1 factor-bounds graph:
B1 = 824000, B2 = 46312000 (P-1 stage 2)
B1 = 824000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67.9
250
260
270
280
Last modified: 2023-06-05T21:50:05+00:00