is 2 15962057 - 1
has 4805058 decimal digits
takes 8.728 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2683.734264.7059%----3.734264.7059%0.0000%
PrimeNet2650.457163.0769%7000022000000.14754.3169%0.604664.6709%1.5939%
GPU722697.479465.2174%11000030000000.21213.1714%7.691566.3205%1.1031%
Difference-1-3.7453-0.5115%-110000-3000000-0.2121-3.1714%-3.9573-1.6146%-1.6146%

Known prime factors (3 factors, 159.0 bits, 0.00099626% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1596205795772343826.5133
3
-135.604e-138.793e-71.614e-6
15962057386067523430100477372065.0651209328858524
22 × 3 × 23 × 131 × 33447529
2018-05-16131334475290.54461.44502.6986
159620572007994522099969787772167.4446289898983884
22 × 32 × 907 × 192634417
2022-08-059071926344172.81978.322015.542

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1596205736974591275108119443143377912891.579
15962057192310340112679386803945645112993.957
15962057775221472208343496850741614292454587764940132.510
1596205774244776737302440842208645688390663091343606160748159.023
P-1 results:
No P-1 results for M15962057


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2022-08-10T19:28:56LordJuliusManual testing2126426.51385.60450e-1318.211.16947e-12
2022-08-10T19:28:56LordJuliusManual testing264265--0.234--
2018-05-16T13:41:00TJAOIManual testing265266*65.065200.08817.760.178
2022-08-10T19:28:56LordJuliusManual testing26526665.065200.08817.760.178
2022-08-10T19:28:56LordJuliusManual testing266267--0.936--
2022-08-05T09:29:58TJAOIManual testing267268*67.444210.95817.761.949
2022-08-10T19:28:56LordJuliusManual testing26726867.444210.95817.761.949


ECM factoring results:
No ECM results for M15962057


Lucas-Lehmer results:
No L-L results for M15962057


PRP results:
No PRP results for M15962057


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
265
264
220
230
240
250
260
270
280
290
2100
Last modified: 2022-08-10T19:28:56+00:00