is 2 24481 - 1
has 7370 decimal digits
takes 0.000 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
Actual2671,213.754277.6119 %8000000000242725041283725086,826.364933.9340 %88,040.119185.2091 %
Target2440.000165.9091 %500500000.00001.6562 %0.000166.4737 %
Difference+23+1,213.7541+11.7028 %+7999999500+2427250412787250+86,826.3649+32.2778%+88,040.1190+18.7354 %

Known prime factors (3 factors, 229.4 bits, 0.93699398% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
244816421013158147671549.19013114278743
19 × 6277 × 109961
2009-07-0462771099610.00457.830e-68.387e-6
24481101593333189489004172063.139207494246945568
25 × 3 × 11 × 1669 × 117729637
2008-08-291669117729637108.730.00420.0079
2448117276112361650445054310291910064705736117.0563528473583932528298335503433288
23 × 756651481 × 20282950459 × 28738881859
2018-07-0620282950459287388818596.781e+1213.61927.101

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-07-04GrunwalderGIMPv4_computers1549.190-0.000%
2009-07-04GrunwalderGIMPv4_computers2063.139-0.000%
2016-12-04kkmrkkblmbrbkManual testing5000000001000000000012
skipped known factor: 642101315814767
skipped known factor: 10159333318948900417
---42.569%
2023-06-07nordisweet16_30.9b380000000008000000000
skipped known factor: 642101315814767
skipped known factor: 10159333318948900417
--5.25238.592%
2024-02-24nordisweet16_30.8b1480000000002427250412837250
skipped known factor: 642101315814767
skipped known factor: 10159333318948900417
--105,63072.776%


Trial Factoring results:
5758596061626364656667
No TF results for M24481


ECM factoring results:
Total ECM effort:23.447 GHz-days
Estimated T-Level:35.816
DigitsB1CompleteFacMiss
2011000376.6590.000%
255000075.6220.000%
3025000011.9040.001%
3510000001.52421.789%
4030000000.16384.946%
45110000000.01598.509%
50440000000.00199.878%


ECM Summary

B1B2factorcurvesGHz-days
10.000
500005000000900.039
250000250000004551.068
10000001000000006436.075
10000001000000001,10810.47
30000003210000002005.797


Lucas-Lehmer results:
No L-L results for M24481


PRP results:
dateuseridcompidcofactorsres64
2017-09-21Oliver KruseOliver-PC
642101315814767
10159333318948900417
7BC56F1255CD05F0
2017-09-21Oliver KruseManual testing
642101315814767
10159333318948900417
7BC56F1255CD05F0
2017-10-12kkmrkkblmbrbkManual testing
642101315814767
10159333318948900417
7BC56F1255CD05F0
2018-07-07Gabriel Lignelli3317U
642101315814767
10159333318948900417
172761123616504450543102919100647057
FD22F2CE14F84855
2018-07-07ANONYMOUSdory
642101315814767
10159333318948900417
172761123616504450543102919100647057
FD22F2CE14F84855
2018-07-08BattlemaxxHome
642101315814767
10159333318948900417
172761123616504450543102919100647057
FD22F2CE14F84855


CERT results:
No CERT results for M24481


P-1 factor-bounds graph:
B1 = 8000000000, B2 = 2427250412837250 (P-1 stage 2)
B1 = 8000000000 (P-1 stage 1)
B1 = 500000000, B2 = 10000000000 (P-1 stage 2)
B1 = 500000000 (P-1 stage 1)
102
103
104
105
106
107
108
109
1010
1011
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=35.82 ~= 102-bit
250
260
270
280
290
2100
2110
2120
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Last modified: 2024-03-13T02:15:48+00:00