is 2 3047563 - 1
has 917408 decimal digits
takes 0.259 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
Actual26819.558267.6471%10000001199121000.92297.4679%20.481270.0632%2.4161%
PrimeNet2600.050463.3333%120002200000.00292.5224%0.053364.2582%0.9249%
GPU722641.167965.6250%130002200000.00301.4307%1.170966.1168%0.4918%
Difference+4+18.3903+2.0221%+987000+119692100+0.9200+6.0372%+19.3102+3.9463%+3.9463%

Known prime factors (1 factor, 46.1 bits, 0.00151354% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3047563768028054271931446.12612600692
22 × 13 × 443 × 547
-4435474.376e-65.537e-50.0001

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-01-16T16:09:50Jocelyn LaroucheManual testing30475630475636-
skipped known factor: 76802805427193
--0.056--3.285%
2022-02-05T08:19:06Jocelyn LaroucheManual testing1000000119912100-
skipped known factor: 76802805427193
--0.923--7.468%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2021-05-17T16:57:22Jocelyn LaroucheManual testing267268--9.81--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.699 GHz-days
Estimated T-Level:0.300
DigitsB1CurvesCompleteFacMiss
20110006 / 1000.06094.148%
25500006 / 2800.02197.876%

New Calculation Method

Total ECM effort:0.699 GHz-days
Estimated T-Level:0.300
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000060.699


Lucas-Lehmer results:
No L-L results for M3047563


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-28T08:50:12Oliver KruseGTX-1
76802805427193
7C3B9093C43996__no
2017-12-10T23:32:26kkmrkkblmbrbkc4.xlarge
76802805427193
7C3B9093C43996__no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 119912100 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 304756, B2 = 3047563 (P-1 stage 2)
B1 = 304756 (P-1 stage 1)
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TF factor-bounds graph:
268
240
250
260
270
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2100
Last modified: 2022-02-05T08:19:06+00:00