is 2 12749593 - 1
has 3838010 decimal digits
takes 5.208 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
Actual2672.330664.1791 %40000042845985014.05019.9917 %16.380767.7582 %
Target2684.675064.7059 %90000120000000.43763.1598 %5.112765.8211 %
Difference-1-2.3445-0.5268 %+310000+416459850+13.6125+6.8319%+11.2680+1.9371 %

Known prime factors (4 factors, 177.9 bits, 0.00139556% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
12749593305990233928.18912
22 × 3
-442.812e-122.369e-64.822e-6
12749593688478023929.35927
33
2008-09-0827275.642e-121.599e-53.255e-5
1274959327539120891031.359108
22 × 33
2008-09-0827272.296e-111.599e-53.255e-5
127495936281741670490034067755732632789.02124635067450741502367
19 × 113 × 577 × 947 × 2837 × 7401787
2022-05-062837740178711,465,9070.24040.4461

11 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-05-06nordisweet16_30.8b14400000400000
skipped known factor: 305990233
skipped known factor: 688478023
skipped known factor: 2753912089
--0.2372.160%
2022-05-06nordisweet16_30.8b1440000042845985022789.02116.479.184%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-08Will EdgingtonManual testing??
29.359
9
2008-09-08Will EdgingtonManual testing??
31.359
10


ECM factoring results:
No ECM results for M12749593


Lucas-Lehmer results:
No L-L results for M12749593


PRP results:
dateuseridcompidcofactorsres64
2022-05-07XZT800G2Mini3
305990233
688478023
2753912089
0E37852C18D0CA78
2023-03-15Naegi Makoto5950X
305990233
688478023
2753912089
628174167049003406775573263
0E37852C18D0CA78


CERT results:
dateuseridcompid
2022-05-07GyuriT1
2023-03-15der Ata Rolf3700U


P-1 factor-bounds graph:
B1 = 400000, B2 = 428459850 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 68
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00