is 2 6244033 - 1
has 1879642 decimal digits
takes 1.107 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L8CC50C8513550DBCdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2689.545966.1765 %600000120000000.31385.2168 %9.859767.9410 %
Target2662.365265.1515 %4000045000000.07272.4331 %2.437965.9994 %
Difference+2+7.1807+1.0250 %+560000+7500000+0.2411+2.7837%+7.4218+1.9416 %

Known prime factors (1 factor, 72.8 bits, 0.00116577% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
624403381715856785798720917912272.791654351576823815
3 × 5 × 13 × 37 × 290327 × 312383
2019-10-13290327312383161.610.07490.1518

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-06-29MadPoov4_computers65000780000--0.0272.589%
2013-04-27Squeeky_SquirrelP4_260011500023000006--0.0603.692%
2019-10-13takahashivaio600000120000001222272.7910.3146.298%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-07-11Sturle Sundev4_computers212620.049
2016-02-23Mark RoseManual testing2622630.157
2014-09-12NesowaManual testing2632640.314
2014-09-16monstManual testing2642650.598
2015-10-14snme2pm1Manual testing2652661.197
2016-03-22Gordon SpenceManual testing2662672.394
2018-06-01ramgeisManual testing2672684.787


ECM factoring results:
Total ECM effort:1.617 GHz-days
Estimated T-Level:1.154
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000061.617


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-09ANONYMOUSv4_computers8CC50C8513550DBC1.107
2000-06-28MadPoov4_computers8CC50C8513550DBC1.107
2002-02-17MadPoov4_computers8CC50C8513550DBC1.107


PRP results:
dateuseridcompidcofactorsres64
2019-10-14mnd950869b
8171585678579872091791
B87D323409CB186A
2019-10-15G.de GrootLL-WR-2
8171585678579872091791
B87D323409CB186A


CERT results:
No CERT results for M6244033


P-1 factor-bounds graph:
B1 = 600000, B2 = 12000000 (P-1 stage 2)
B1 = 600000 (P-1 stage 1)
B1 = 115000, B2 = 2300000 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
B1 = 65000, B2 = 780000 (P-1 stage 2)
B1 = 65000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
268
267
266
265
264
263
262
this exponent TF target: 66
TF double-checked to: 67
ECM T-Level=1.15 ~= -13-bit
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00