is 2 101856541 - 1
has 30661875 decimal digits
takes 405.552 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
Actual276150.250564.4737%8500001785000010.25463.8228%160.505168.2965%5.7965%
PrimeNet2729.389062.5000%400000220000009.10355.2974%18.492567.7974%5.2974%
GPU72276150.250564.4737%6500002200000010.46823.8491%160.718768.3227%3.8491%
Difference---+200000-4150000-0.2136-0.0263%-0.2136-0.0263%-0.0263%

Known prime factors (1 factor, 113.5 bits, 0.00011144% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1018565411475463600788294868511986442228772935113.50772428514963427575481479704
23 × 13 × 67 × 97 × 577 × 3517 × 196831 × 268279831
1968312682798312020-12-301.888e+985.461157.61

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-12-30T21:16:25Ben Deloi-02ebe3c0ec1da7177850000178500001235113.50710.25811.120.513.823%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-02-27T07:21:001997rj7compa263264--0.019--
2010-08-15T12:38:00Mr-Plonklinux-i7-920264265--0.037--
2012-04-18T15:12:00ALSJC-Witten265266--0.073--
2013-08-27T01:09:00SMoffatManual testing266267--0.147--
2013-08-27T23:34:00RobishManual testing267268--0.293--
2014-04-14T05:21:00SADMASTERIGOR_ALLBEST268269--0.587--
2014-05-08T14:01:00ANONYMOUSLibary_1269270--1.174--
2014-05-19T02:23:00sharpeymansharpeyman270271--2.348--
2014-12-05T14:46:00shaugeManual testing271272--4.695--
2020-01-31T02:14:18ixfd64Manual testing272274--28.17--
2020-10-10T18:26:30TheJudgerManual testing274275--37.56--
2020-10-10T18:26:30TheJudgerManual testing275276--75.13--


ECM factoring results:
Exponent "101856541" not found


Lucas-Lehmer results:
Exponent "101856541" not found


PRP results:
Exponent "101856541" not found


P-1 factor-bounds graph:
B1 = 850000, B2 = 17850000 (stage 2)
B1 = 850000 (stage 1)
104
105
106
104
105
106
107
108
109
TF factor-bounds graph:
276
275
274
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
2110
2120
Last modified: 2020-12-30T21:16:25+00:00