is 2 4122996443 - 1
has 1241145602 decimal digits
takes 1,034,375.821 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
Actual27929.695259.4937%----29.695259.4937%
Target292243,263.405365.2174%200000009600000000197,146.23064.2483%440,409.635966.6951%
Difference-13-243,233.7101-5.7237%-20000000-9600000000-197,146.2306-4.2483%-440,379.9407-7.2014%

Known prime factors (6 factors, 297.6 bits, 0.00000722% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
412299644316904285416311340.621205
5 × 41
2012-08-205415.287e-110.00250.0037
41229964438377269092745131549.573101592
23 × 32 × 17 × 83
2019-07-1217833.430e-80.00750.0126
412299644311502912696183431650.031139497
3 × 46499
2019-07-123464994.132e-80.92261.7213
412299644318967845136021511650.752230025
3 × 52 × 3067
2019-07-122530676.106e-80.06940.1134
412299644357040831189616411652.341691740
22 × 34 × 5 × 7 × 61
2019-07-1281811.455e-70.02950.0600
4122996443219154742450368331754.2832657712
24 × 3 × 17 × 3257
2019-07-121732571.098e-60.07040.1206

57 Composite Factors:
P-1 results:
No P-1 results for M4122996443


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-1224925049.573151.61107e-8242,6563.43752e-8
2019-07-1225025150.031164.93715e-9242,6561.05343e-8
2019-07-1225025150.752162.46857e-8242,6565.26717e-8
TF systematically completed to 64 but no per-exponent detailed record exists
2019-07-1225225352.34116-242,656-
2019-07-1225425554.283175.15542e-7242,6561.10001e-6
2022-02-04ramgeisr4mg31s275276--1.856--
2022-02-08ramgeisr4mg31s276277--3.712--
2022-04-04ramgeisr4mg31s277278--7.424--
2022-04-24ramgeisr4mg31s278279--14.85--


ECM factoring results:
No ECM results for M4122996443


Lucas-Lehmer results:
No L-L results for M4122996443


PRP results:
No PRP results for M4122996443


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
TF factor-bounds graph:
279
278
277
276
255
253
251
250
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00