is 2 2363047 - 1
has 711349 decimal digits
takes 0.160 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26712.574467.1642%2000000600000000.50557.6031%13.079969.6607%
Target2630.675465.0794%100007000000.00471.2708%0.680165.5231%
Difference+4+11.8990+2.0848%+1990000+59300000+0.5008+6.3324%+12.3998+4.1376%

Known prime factors (1 factor, 33.0 bits, 0.00139540% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
236304784360777911032.9741785
3 × 5 × 7 × 17		-7173.357e-107.391e-71.395e-6

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-04-27alpertronManual testing20000006000000012-
skipped known factor: 8436077791
--0.505--7.603%


Trial Factoring results:
No TF results for M2363047


ECM factoring results:
Total ECM effort:7.213 GHz-days
Estimated T-Level:21.195
DigitsB1CompleteFacMiss
20110002.5497.818%
25500000.23978.738%
302500000.01598.488%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.266
500007000000505.182
500002702353571.765


Lucas-Lehmer results:
No L-L results for M2363047


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-12Oliver KruseGTX-1FD05F24FE1F7AB__no
2017-11-24kkmrkkblmbrbkc4.xlarge
8436077791
FD05F24FE1F7AB__no


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
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105
106
107
100
101
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105
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108
TF factor-bounds graph:
this exponent TF target: 63
TF double-checked to: 67.9
ECM T-Level=21.2 ~= 54-bit
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Last modified: 2023-10-02T12:12:48+00:00