is 2 74029213 - 1
has 22285014 decimal digits
takes 204.668 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
Actual275103.363464.0000%6050006050002.42531.4835%105.788764.5341%0.5341%
PrimeNet2703.227861.4286%320000140000004.27075.5487%7.498563.5688%2.1402%
GPU7227451.680563.5135%500000170000005.60824.1317%57.288765.0210%1.5075%
Difference+1+51.6829+0.4865%+105000-16395000-3.1829-2.6482%+48.5000-0.4870%-0.4870%

Known prime factors (1 factor, 75.7 bits, 0.00010230% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
74029213626971518806902285429512375.731423462234298575
3 × 52 × 953 × 45853 × 129209
2015-04-0445853129209146.660.20200.3741

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-04-04T17:18:00guruw36050006050002375.7312.425409.34.8511.483%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-12T23:15:00lycornManual testing21264--0.048--
2010-06-18T06:47:00josiboZiben264265--0.050--
2010-08-23T22:14:00MarzbugCorei7265266--0.101--
2010-08-27T00:54:00MarzbugCorei7266267--0.202--
2010-08-28T09:32:00TeraTismS267268--0.404--
2010-08-30T12:14:00Hatchwquad268269--0.808--
2012-10-16T19:36:00LordJuliusBlackbox269270--1.615--
2012-11-30T01:00:00S00030vd01270271--3.230--
2015-03-03T15:10:00RichD0Manual testing271272--6.460--
2015-03-31T01:01:00fre_gamesManual testing272273--12.92--
2015-03-31T01:01:00fre_gamesManual testing273274--25.84--
2015-03-31T01:01:00fre_gamesManual testing274275--51.68--


ECM factoring results:
No ECM results for M74029213


Lucas-Lehmer results:
No L-L results for M74029213


PRP results:
No PRP results for M74029213


P-1 factor-bounds graph:
B1 = 605000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
Last modified: 2015-04-04T17:18:00+00:00