is 2 46639 - 1
has 14040 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Assigned as ecm on 2023-09-24, 0.0% done
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actualunknown76000000053727178930425041,855.992370.0695%41,855.992370.0695%
Target2440.000163.6364%500500000.00001.9995%0.000164.3635%
Difference-44-0.0001-63.6364%+759999500+537271789254250+41,855.9923+68.0700%+41,855.9922+5.7060%

Known prime factors (3 factors, 182.8 bits, 0.39191629% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4663982729642445531342.91288691484
22 × 3 × 7 × 1055851
-710558511.622e-58.226e-50.0002
4663954043904849983991652.26357938533041
3 × 19312844347
2009-04-223193128443470.01311.50452.8100
466392363807531416981572823380012787.6112534153317413518271000
23 × 3 × 53 × 38393 × 22001869415549
2010-05-0538393220018694155491.309e+91,714.03,201.3

4 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-09-26kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 8272964244553
--0.291--39.365%
2023-04-28JacobZMServer760000000537271789304250-
skipped known factor: 8272964244553
skipped known factor: 5404390484998399
skipped known factor: 236380753141698157282338001
--41,856--70.070%


Trial Factoring results:
No TF results for M46639


ECM factoring results:
Total ECM effort:92.687 GHz-days
Estimated T-Level:34.149
DigitsB1CompleteFacMiss
2011000238.8100.000%
255000045.9790.000%
302500006.7640.115%
3510000000.83043.609%
4030000000.08591.821%
45110000000.00899.250%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
10.00000e+0
5000050000002720.280
250000250000005853.009
100000010000000077115.86
10000001460000001002.365
2255324662133734115071.17


Lucas-Lehmer results:
No L-L results for M46639


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21Oliver KrusePRP
8272964244553
5404390484998399
236380753141698157282338001
40568CA430C7D0DCno
2017-09-21Oliver KruseManual testing
8272964244553
5404390484998399
236380753141698157282338001
40568CA430C7D0DCno
2017-10-02kkmrkkblmbrbkManual testing
8272964244553
5404390484998399
236380753141698157282338001
40568CA430C7D0__no
2017-12-07ATHxps
8272964244553
5404390484998399
236380753141698157282338001
40568CA430C7D0__no
2020-04-17Oliver KruseManual testing
8272964244553
5404390484998399
236380753141698157282338001
B9ED2524217DC5__no


P-1 factor-bounds graph:
B1 = 760000000, B2 = 537271789304250 (P-1 stage 2)
B1 = 760000000 (P-1 stage 1)
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67.9
ECM T-Level=34.15 ~= 97-bit
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Last modified: 2023-12-05T18:57:04+00:00