is 2 2729 - 1
has 822 decimal digits
takes 0.000 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
Actual26710,888.207282.0896%----10,888.207282.0896%12.0896%
PrimeNet2400.000170.0000%500100000.00002.1395%0.000172.1395%2.1395%
GPU722440.000972.7273%500100000.00000.8405%0.000973.5677%0.8405%
Difference+23+10,888.2064+9.3623%-500-100000.0000-0.8405%+10,888.2064+8.5218%+8.5218%

Known prime factors (1 factor, 47.6 bits, 1.74338167% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
27292099276809560011547.57738462382000
24 × 32 × 53 × 7 × 31 × 43 × 229
1999-03-261252290.01315.542e-91.079e-8

P-1 results:
Exponent "2729" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-03-26T00:00:00ANONYMOUSv4_computers??47.577150.0062.02805e-70.016


ECM factoring results:
Total ECM effort:464.047 GHz-days
Estimated T-Level:49.437
DigitsB1CurvesCompleteFacMiss
201100023595 / 100235.9500.000%
255000023595 / 28084.2680.000%
3025000023595 / 64036.8670.000%
35100000023595 / 158014.9340.000%
40300000023595 / 47005.0200.660%
451100000023595 / 97002.4328.781%
504400000015176 / 171000.88741.168%

ECM Summary

B1B2factorcurvesGHz-days
1100000011000000008,41956.52
44000000440000000015,176407.5


Lucas-Lehmer results:
Exponent "2729" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T18:26:31Oliver KruseOliver-PC
209927680956001
D46B0FA5333E4F__no
2017-09-21T19:21:00Oliver KruseManual testing
209927680956001
D46B0FA5333E4F__no
2017-10-12T13:29:17kkmrkkblmbrbkManual testing
209927680956001
D46B0FA5333E4F__no
2020-04-17T12:31:23Oliver KruseIOS-1
209927680956001
44FBAC6480FA7F__no


P-1 factor-bounds graph:
101
102
103
101
102
103
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2020-04-17T12:31:23+00:00