is 2 73447019 - 1
has 22109756 decimal digits
takes 203.059 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27213.020762.5000%----13.020762.5000%1.0714%
PrimeNet2703.253461.4286%320000140000004.27075.5434%7.524163.5667%2.1382%
GPU7227452.090163.5135%500000170000005.60824.1276%57.698365.0195%1.5060%
Difference-2-39.0694-1.0135%-500000-17000000-5.6082-4.1276%-44.6776-2.5195%-2.5195%

Known prime factors (1 factor, 66.3 bits, 0.00009029% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
73447019919371120010620998392066.317625873679101
11 × 1277 × 1913 × 23291
2015-01-251913232910.26450.01230.0156

P-1 results:
Exponent "73447019" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2002-05-05T00:00:00Jocelyn Larouchev4_computers?257--0.000--
2008-06-28T14:28:00George WoltmanManual testing?264--0.027--
2010-06-09T07:13:00ANONYMOUSlims2264265--0.051--
2010-06-10T22:16:00Markus Tervoorenl1265266--0.102--
2010-06-10T23:52:00sannerud.comJimEmcLap266267--0.203--
2015-01-25T22:16:00tigreroarsManual testing26626766.317200.063416.90.130
2010-06-12T18:14:00forrest-lumpkinMac_mini267268--0.407--
2010-06-14T19:38:00dulix9matrix268269--0.814--
2012-10-09T04:04:00GrunwalderGIMPcompute-0-3269270--1.628--
2014-08-05T15:34:00Mark RoseManual testing270271--3.256--
2015-01-09T19:13:00RichD0Manual testing271272--6.512--


ECM factoring results:
Exponent "73447019" not found


Lucas-Lehmer results:
Exponent "73447019" not found


PRP results:
Exponent "73447019" not found


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
257
250
260
270
280
290
2100
Last modified: 2015-01-25T22:16:00+00:00