is 2 4125777839 - 1
has 1241982885 decimal digits
takes 1,035,073.616 GHz-days to do one PRP test
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2777.418858.4416%----7.418858.4416%
Target292243,099.409165.2174%200000009600000000197,146.23064.2486%440,245.639766.6952%
Difference-15-243,091.9904-6.7758%-20000000-9600000000-197,146.2306-4.2486%-440,238.2209-8.2536%

Known prime factors (5 factors, 199.1 bits, 0.00000483% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
412577783982515556791032.9421
1
2012-08-20111.390e-130.00040.0007
4125777839330062227131134.9424
22
2012-08-20445.600e-130.00150.0030
41257778391732826692391237.33421
3 × 7
2012-08-20374.660e-120.00120.0022
41257778391271152152195911546.85315405
3 × 5 × 13 × 79
2012-12-1413793.814e-90.00600.0096
41257778391479668964178971547.07217932
22 × 4483
2012-08-25444837.704e-90.09020.1659

26 Composite Factors:
P-1 results:
No P-1 results for M4125777839


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2020-11-11slaurnocebo-165026426834.942115.28309e-152,118,6701.08139e-14
2020-11-11slaurnocebo-165026426832.942103.30193e-162,118,6706.75867e-16
Missing TF 68 - 69
Missing TF 69 - 70
Missing TF 70 - 71
Missing TF 71 - 72
Missing TF 72 - 73
Missing TF 73 - 74
Missing TF 74 - 75
2012-12-24275276--1.855--
2012-12-24276277--3.709--


ECM factoring results:
No ECM results for M4125777839


Lucas-Lehmer results:
No L-L results for M4125777839


PRP results:
No PRP results for M4125777839


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
TF factor-bounds graph:
277
276
268
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00