is 2 15013237 - 1
has 4519435 decimal digits
takes 7.190 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
Actual2683.970264.7059%----3.970264.7059%0.0000%
PrimeNet2650.486063.0769%6500020000000.11834.1435%0.604364.6068%1.5299%
GPU722697.952165.2174%10000026000000.16402.9937%8.116166.2587%1.0413%
Difference-1-3.9819-0.5115%-100000-2600000-0.1640-2.9937%-4.1460-1.5528%-1.5528%

Known prime factors (3 factors, 160.6 bits, 0.00106944% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
15013237107424815235591443.288357767
357767
-13577671.123e-70.01350.0253
15013237112306437406225991753.318374024727
32 × 41558303
2014-09-189415583030.00011.57222.9365
15013237178330782860922857292063.951593911835472
24 × 3 × 12373163239
2017-06-1516123731632390.1508468.10874.29

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
150132371206449828813118041247463098413096.607
1501323719157151399652757807854467298951133107.240
1501323720027694902973511449252795746258967136117.269
15013237215147142454669705952789303360412263266973655908949160.558
P-1 results:
No P-1 results for M15013237


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-09-18T11:33:00TJAOIManual testing253254*53.318175.85939e-515.130.000
2017-06-15T15:26:38TJAOIManual testing263264*63.951200.04414.890.092
2022-08-10T19:28:55LordJuliusManual testing2126443.288141.12296e-715.132.36276e-7
2022-08-10T19:28:55LordJuliusManual testing2126453.318170.00015.130.000
2022-08-10T19:28:55LordJuliusManual testing2126463.951200.15114.890.312
2022-03-27T14:59:43LordJuliusManual testing264265--0.249--
2022-03-27T14:59:43LordJuliusManual testing265266--0.498--
2022-03-27T14:59:43LordJuliusManual testing266267--0.995--
2021-07-26T13:23:14ViliamFManual testing267268--1.991--
2022-08-10T19:28:55LordJuliusManual testing267268--1.991--


ECM factoring results:
No ECM results for M15013237


Lucas-Lehmer results:
No L-L results for M15013237


PRP results:
No PRP results for M15013237


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
268
267
266
265
264
254
240
250
260
270
280
290
2100
Last modified: 2022-08-10T19:28:55+00:00