is 2 56325271 - 1
has 16955597 decimal digits
takes 119.378 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2718.487863.3803%----8.487863.3803%0.0000%
PrimeNet2692.119662.3188%240000100000002.37175.3715%4.491364.3429%2.0240%
GPU7227333.960764.3836%400000130000003.33904.0624%37.299665.8304%1.4469%
Difference-2-25.4729-1.0033%-400000-13000000-3.3390-4.0624%-28.8118-2.4501%-2.4501%

Known prime factors (1 factor, 81.3 bits, 0.00014426% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5632527128855087476372469104219372581.25525614690319352808
23 × 34 × 227 × 197551 × 881473
2012-05-3019755188147310,2530.72161.2356

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-05-30T15:55:00Jwb52zClay2581.255-238.8-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-15T00:00:00ANONYMOUSv4_computers21253--2.13035e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.13035e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.26069e-5--
2000-06-11T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-22T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-09-22T00:00:00ANONYMOUSv4_computers21258--0.001--
Missing TF 58 - 59
Missing TF 59 - 60
Missing TF 60 - 61
Missing TF 61 - 62
Missing TF 62 - 63
2008-07-17T03:46:00Sturle Sundeklengel.ifi263264--0.035--
2008-07-17T15:10:00Sturle Sundeklengel.ifi264265--0.066--
2008-07-18T02:12:00Sturle Sundezumthor.ifi265266--0.133--
2008-07-18T19:22:00Sturle Sundeenstrom.ifi266267--0.265--
2009-05-21T20:45:00ANONYMOUSHHS-C0267268--0.531--
2011-04-16T16:35:00Xyzzy2268269--1.061--
2011-06-04T19:09:00ANONYMOUS269270--2.123--
2011-08-17T18:54:00ANONYMOUSSkythen270271--4.245--


ECM factoring results:
No ECM results for M56325271


Lucas-Lehmer results:
No L-L results for M56325271


PRP results:
No PRP results for M56325271


P-1 factor-bounds graph:
104
105
106
104
105
106
TF factor-bounds graph:
271
270
269
268
267
266
265
264
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-05-30T15:55:24+00:00