is 2 126000353 - 1
has 37929886 decimal digits
takes 639.627 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
Actual2727.589962.5000 %13100003799000024.35266.7511 %31.942565.0317 %
Target277242.921364.9351 %80000014000000061.71263.8604 %304.633966.2887 %
Difference-5-235.3313-2.4351 %+510000-102010000-37.3601+2.8907%-272.6914-1.2570 %

Known prime factors (1 factor, 77.8 bits, 0.00006175% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1260003532640075138729493055860792477.8051047645929503663
7 × 2053 × 6359 × 11464067
2018-03-01635911464067305.124.64178.5868

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-03-01timbittimcpui5131000037990000622477.80523.534.336%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-01Torchwood InstituteHTPC-V642642650.030
2012-09-15subgeniusdoorman2652660.059
2015-01-10Richardsvn_022662670.119
2015-07-13el groccoManual testing2672690.712
2015-07-17Judge HaleManual testing2692700.949
2015-08-08Judge HaleManual testing2702711.898
2015-08-31caddrManual testing2712723.796


ECM factoring results:
No ECM results for M126000353


Lucas-Lehmer results:
No L-L results for M126000353


PRP results:
No PRP results for M126000353


CERT results:
No CERT results for M126000353


P-1 factor-bounds graph:
B1 = 1310000, B2 = 37990000 (P-1 stage 2)
B1 = 1310000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00