is 2 64035547 - 1
has 19276621 decimal digits
takes 155.331 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
Actual27459.746064.8649%----59.746064.8649%2.0077%
PrimeNet2703.731562.8571%280000120000003.23075.2140%6.962368.0711%5.2140%
GPU7227459.746064.8649%400000140000004.01313.7912%63.759068.6561%3.7912%
Difference----400000-14000000-4.0131-3.7912%-4.0131-3.7912%-3.7912%

Known prime factors (1 factor, 79.1 bits, 0.00012357% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
640355476605026812938645253340332479.1285157312713311128
23 × 3 × 41 × 47 × 67 × 317 × 5250449
31752504492013-08-233,148.51.00721.8792

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-08-23T03:58:00Ge yongManual testing2479.128-310.7-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17T00:00:00ANONYMOUSv4_computers?250--2.34229e-6--
2003-08-25T00:00:00ANONYMOUSv4_computers?259--0.001--
2004-01-27T00:00:00AxelFoxv4_computers?260--0.001--
2009-03-05T14:55:00BIGMATHCore2263264--0.031--
2009-03-05T22:31:00CPSlackerslackxps264265--0.058--
2009-03-07T02:52:00Cereal Businessmary265266--0.117--
2009-09-27T16:26:00ANONYMOUSteste266267--0.233--
2009-10-02T09:29:00ANONYMOUS267268--0.467--
2009-10-04T16:16:00kvizbarHome268269--0.934--
2012-01-05T12:42:00america64Manual testing269270--1.867--
2012-09-13T17:52:00rglarsonRLRL_s_Dell270271--3.734--
2013-07-08T22:42:00Jerry HallettManual testing271272--7.469--
2013-08-12T22:40:00Jerry HallettManual testing272273--14.94--
2013-08-12T22:40:00Jerry HallettManual testing273274--29.87--


ECM factoring results:
Exponent "64035547" not found


Lucas-Lehmer results:
Exponent "64035547" not found


PRP results:
Exponent "64035547" not found


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
260
259
250
250
260
270
280
290
2100
Last modified: 2013-08-23T03:58:11+00:00