is 2 4025543 - 1
has 1211810 decimal digits
takes 0.502 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
Actual2677.381367.1642%----7.381367.1642%3.2298%
PrimeNet2610.076363.9344%160003200000.00592.7310%0.082266.6654%2.7310%
GPU722651.812466.1538%220003600000.00731.7512%1.819767.9050%1.7512%
Difference+2+5.5690+1.0103%-22000-360000-0.0073-1.7512%+5.5617-0.7409%-0.7409%

Known prime factors (2 factors, 107.6 bits, 0.00267354% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4025543742832242127111446.0789226485
32 × 5 × 205033
-92050332.503e-60.00200.0038
402554333672699555906483611961.546418237981260
22 × 3 × 5 × 11 × 107 × 137 × 139 × 311
2012-07-111393110.11992.683e-55.116e-5

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
402554325013166909586554402903826751667133107.624
P-1 results:
Exponent "4025543" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2012-07-11T04:38:00dbaughManual testing??61.546190.0441.0190.089


ECM factoring results:
Total ECM effort:10.810 GHz-days
Estimated T-Level:0.700
DigitsB1CurvesCompleteFacMiss
201100014 / 1000.14086.875%
255000014 / 2800.05095.114%
302500004 / 6400.00699.376%
3510000002 / 15800.00199.873%

ECM Summary

B1B2factorcurvesGHz-days
500005000000101.802
2500002500000021.802
100000010000000027.207


Lucas-Lehmer results:
Exponent "4025543" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-17T21:14:33Wentao HuangGimi_Thinkpad
74283224212711
3367269955590648361
no
2017-12-20T10:35:39kkmrkkblmbrbkc4.xlarge
74283224212711
3367269955590648361
B4989469A64AFE__no


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2017-12-20T10:35:39+00:00