is 2 12067273 - 1
has 3632612 decimal digits
takes 4.646 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 L-L tests remaining
ResidueStatus
L-LD95CAA090988FCF3double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.462464.1791%14000019250000.13243.5842%2.594865.4630%1.2839%
PrimeNet2640.295062.5000%5500015000000.07474.1172%0.369664.0439%1.5439%
GPU722684.939464.7059%8000020000000.10312.9436%5.042465.7448%1.0389%
Difference-1-2.4770-0.5268%+60000-75000+0.0294+0.6407%-2.4476-0.2818%-0.2818%

Known prime factors (1 factor, 66.2 bits, 0.00054895% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
12067273873457580614745844732066.2433619117511532
22 × 33 × 19 × 23 × 43 × 1783319
2015-02-084317833192.12780.05430.1013

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-01-08T00:00:00ANONYMOUSv4_computers1400001925000---0.132--3.584%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-02-23T00:00:00ANONYMOUSv4_computers?264--0.163--
2013-09-23T11:35:00lycornManual testing264265--0.310--
2013-10-03T01:38:00NesowaManual testing265266--0.619--
2015-02-08T16:36:00ThaManual testing26626766.243200.9049.4531.839


ECM factoring results:
Exponent "12067273" not found


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-02-10T00:00:00ANONYMOUSv4_computersD95CAA090988FCF34.646
2004-05-25T00:00:00Team Prime Ribv4_computersD95CAA090988FCF34.646
2004-07-26T00:00:00ANONYMOUSv4_computersD95CAA090988FCF34.646


PRP results:
Exponent "12067273" not found


P-1 factor-bounds graph:
B1 = 140000, B2 = 1925000 (P-1 stage 2)
B1 = 140000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
TF factor-bounds graph:
267
266
265
264
250
260
270
280
290
2100
Last modified: 2015-02-08T16:36:00+00:00