is 2 108386347 - 1
has 32627542 decimal digits
takes 475.696 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
Actual276141.198564.4737%5500000550000035.00143.2067%176.199965.6129%3.1129%
PrimeNet2728.823462.5000%4500002400000011.02915.4978%19.852464.5617%2.0617%
GPU72276141.198564.4737%7000002400000012.53343.9809%153.731965.8880%1.4143%
Difference---+4800000-18500000+22.4680-0.7743%+22.4680-0.2751%-0.2751%

Known prime factors (1 factor, 104.4 bits, 0.00009633% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1083863472691069096708897725304163998586332104.408124142439116842720296873
3 × 37 × 43 × 487 × 19181 × 183047 × 15211289
2021-05-29183047152112891.589e+96.37559.851

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-05-29T14:59:56Paul UnderwoodManual testing5500000550000032104.40835.00951.470.003.207%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-02T04:11:00RichardFX5000_1263264--0.018--
2010-09-10T14:10:00sasaki3MATE_J264265--0.034--
2012-06-01T21:03:00Richard8F02265266--0.069--
2014-11-24T08:40:00g0bManual testing266267--0.138--
2015-01-28T06:50:00el groccoManual testing267268--0.276--
2015-01-29T04:34:00JMGarciajmgarcia-linux268269--0.552--
2015-01-31T12:32:00Jonathan WebbManual testing269270--1.103--
2015-02-27T06:37:00ANONYMOUS270271--2.206--
2019-01-20T11:17:15Niels_Mache_NextcloudManual testing271272--4.413--
2019-10-14T07:49:00Niels_Mache_NextcloudManual testing272273--8.825--
2019-10-14T07:49:00Niels_Mache_NextcloudManual testing273274--17.65--
2021-04-22T08:22:10Kevin JagetManual testing274275--35.30--
2021-04-22T08:22:10Kevin JagetManual testing275276--70.60--


ECM factoring results:
Exponent "108386347" not found


Lucas-Lehmer results:
Exponent "108386347" not found


PRP results:
Exponent "108386347" not found


P-1 factor-bounds graph:
B1 = 5500000 (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
Last modified: 2021-05-29T14:59:56+00:00