is 2 104950457 - 1
has 31593236 decimal digits
takes 417.870 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual277291.643964.9351%830000163925009.68703.4164%301.330968.3514%5.8514%
PrimeNet2729.112262.5000%450000220000009.37655.3956%18.488767.8956%5.3956%
GPU72276145.821164.4737%6500002400000011.09733.9268%156.918468.4005%3.9268%
Difference+1+145.8228+0.4614%+180000-7607500-1.4103-0.5104%+144.4125-0.0490%-0.0490%

Known prime factors (1 factor, 92.1 bits, 0.00008779% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
10495045754296814678972212192487215292892.13325867831465932641052
22 × 3 × 72 × 101 × 127 × 100519 × 34120033
100519341200332020-05-0910,077,91511.28120.045

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-05-10T03:17:13linamentMicron73383000016392500122892.1339.69835.719.373.416%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-24T17:54:00RichardUNKNOWN263264--0.019--
2010-08-29T18:14:00Donna NobleHTPC-V64264265--0.036--
2012-05-14T08:10:00Richardworkmy265266--0.071--
2013-09-09T21:40:00willmoreManual testing266267--0.142--
2014-07-24T15:07:00Preben SManual testing267268--0.285--
2014-07-25T15:24:00roemer2201HPCC268269--0.570--
2014-08-15T01:54:00roemer2201HPCC269270--1.139--
2014-10-13T16:57:00SMoffatManual testing270271--2.278--
2015-01-31T20:17:00SRS TechnologyManual testing271272--4.557--
2019-11-30T07:16:00ViliamFManual testing272273--9.114--
2019-11-30T07:16:00ViliamFManual testing273274--18.23--
2020-04-26T22:02:57TheJudgerManual testing274275--36.46--
2020-04-26T22:02:57TheJudgerManual testing275276--72.91--
2020-04-26T22:02:57TheJudgerManual testing276277--145.8--


ECM factoring results:
Exponent "104950457" not found


Lucas-Lehmer results:
Exponent "104950457" not found


PRP results:
Exponent "104950457" not found


P-1 factor-bounds graph:
B1 = 830000, B2 = 16392500 (stage 2)
B1 = 830000 (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
250
260
270
280
290
2100
Last modified: 2020-05-10T03:17:13+00:00