is 2 29917 - 1
has 9006 decimal digits
takes 0.000 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
Actualunknown500000000100000000000.812850.2349%0.812850.2349%50.2349%
PrimeNet2400.000062.5000%500100000.00004.1006%0.000064.0377%1.5377%
GPU722440.000165.9091%500100000.00001.7572%0.000166.5081%0.5990%
Difference-44-0.0001-65.9091%+499999500+9999990000+0.8128+48.4777%+0.8127-16.2732%-16.2732%

Known prime factors (3 factors, 244.5 bits, 0.81714328% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
299175026057722.26184
22 × 3 × 7
-471.902e-113.325e-96.502e-9
2991731520480430882601874877664161228133107.9585267988172424140434347973420
22 × 3 × 5 × 499157 × 5328216973 × 33012200437
2017-10-105328216973330122004374.821e+125.46048.6611
299172462655450508318359781156243226752135114.246411581283301854858405113521280
27 × 5 × 11 × 239 × 23459 × 10427388667420194907
2017-10-0623459104273886674201949076.028e+12453,756,507847,490,793

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
29917158423731313000517331442008101189620601740130.219
2991712377446665615487050406598804363519979469742136.507
2991777624082935753826729487974914696806315689306266081
03645368151025401
67222.204
2991739014306540782607111053014273583628626061444758378
045583528113038273873857
74244.465
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-01-04T01:58:23kkmrkkblmbrbkManual testing5000000001000000000012-
skipped known factor: 5026057
--0.813--42.917%


Trial Factoring results:
No TF results for M29917


ECM factoring results:

Old Calculation Method

Total ECM effort:19.207 GHz-days
Estimated T-Level:31.617
DigitsB1CurvesCompleteFacMiss
20110001255 / 10012.5500.000%
25500001255 / 2804.4821.122%
302500001126 / 6401.75917.192%
351000000511 / 15800.32372.360%
403000000500 / 47000.10689.907%

New Calculation Method

Total ECM effort:19.207 GHz-days
Estimated T-Level:31.617
DigitsB1CompleteFacMiss
2011000156.9830.000%
255000031.9100.000%
302500005.5010.408%
3510000000.79745.060%
4030000000.09990.619%
45110000000.01198.944%
50440000000.00199.899%


ECM Summary

B1B2factorcurvesGHz-days
5000050000001290.074
250000250000006151.767
1000000100000000110.126
30000003000000002097.206
30000003000000001816.241
30000003000000001103.793


Lucas-Lehmer results:
No L-L results for M29917


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T19:40:06Oliver KruseOliver-PC
5026057
75DF1D0F6DF60B__no
2017-09-21T20:27:21Oliver KruseManual testing
5026057
75DF1D0F6DF60B__no
2017-10-07T08:57:51kkmrkkblmbrbkc4.xlarge3F74A763B0225D__?
2017-10-11T01:32:05Oliver KruseGTX-208EF834CAA94C8__?
2017-10-11T17:18:11YarBerManual testing
5026057
315204804308826018748776641612281
24626554505083183597811562432267521
08EF834CAA94C8__no
2017-10-14T02:07:46kkmrkkblmbrbkManual testing
5026057
315204804308826018748776641612281
24626554505083183597811562432267521
08EF834CAA94C8__no
2020-04-17T13:47:45Oliver KruseManual testing
5026057
315204804308826018748776641612281
24626554505083183597811562432267521
8BB6114AA397AD__no


P-1 factor-bounds graph:
B1 = 500000000, B2 = 10000000000 (P-1 stage 2)
B1 = 500000000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-04-17T13:47:45+00:00