is 2 2449859 - 1
has 737482 decimal digits
takes 0.166 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
Actual26712.128867.1642%2000000600000000.50557.6313%12.634369.6700%2.5058%
PrimeNet2590.031362.7119%100001800000.00192.5282%0.033263.6546%0.9427%
GPU722630.651565.0794%100001600000.00181.3333%0.653365.5450%0.4656%
Difference+4+11.4774+2.0848%+1990000+59840000+0.5037+6.2980%+11.9810+4.1250%+4.1250%

Known prime factors (1 factor, 47.6 bits, 0.00194187% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
24498592093748524700791547.57342732021
3 × 14244007
-3142440071.037e-50.07600.1420

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-09-28T16:27:04alpertronManual testing20000006000000012-
skipped known factor: 209374852470079
--0.505--7.631%
2019-02-05T11:16:48Jocelyn LaroucheManual testing10000001000000---0.098--2.739%


Trial Factoring results:
No TF results for M2449859


ECM factoring results:

Old Calculation Method

Total ECM effort:0.268 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.268 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.268


Lucas-Lehmer results:
No L-L results for M2449859


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-13T17:24:57Oliver KruseGTX-1D79807C89B478F__no
2017-11-28T11:54:38kkmrkkblmbrbkc4.xlarge
209374852470079
D79807C89B478F__no


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 1000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2019-02-05T11:16:48+00:00