is 2 13807 - 1
has 4157 decimal digits
takes 0.000 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
Actualunknown50000500000.000010.1179%0.000010.1179%10.1179%
PrimeNet2400.000065.0000%500100000.00003.3531%0.000066.1736%1.1736%
GPU722440.000268.1818%500100000.00001.3947%0.000268.6256%0.4438%
Difference-44-0.0002-68.1818%+49500+40000+0.0000+8.7232%-0.0002-58.5077%-58.5077%

Known prime factors (2 factors, 150.2 bits, 1.08813696% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1380757865689291032.430209552
24 × 7 × 1871
-1618715.626e-83.348e-85.457e-8
1380729110208678558736751696217994454120136117.80910541829752501896411854935175800
23 × 52 × 21179 × 49157 × 84163 × 601553106840811
2021-10-14841636015531068408111.391e+139,372.517,505

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
13807168448229056054134588855723093518905686694372946150.239
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-02-06T16:46:59Lisander ViaeneManual testing5000050000-
skipped known factor: 5786568929
--1.42986e-5--6.225%


Trial Factoring results:
No TF results for M13807


ECM factoring results:

Old Calculation Method

Total ECM effort:22.181 GHz-days
Estimated T-Level:36.354
DigitsB1CurvesCompleteFacMiss
20110003398 / 10033.9800.000%
25500003398 / 28012.1360.001%
302500003250 / 6405.0780.621%
3510000002694 / 15801.70518.166%
4030000001273 / 47000.27176.271%

New Calculation Method

Total ECM effort:22.181 GHz-days
Estimated T-Level:36.354
DigitsB1CompleteFacMiss
2011000508.9580.000%
2550000108.4410.000%
3025000018.8670.000%
3510000002.6796.864%
4030000000.31972.684%
45110000000.03396.748%
50440000000.00399.696%


ECM Summary

B1B2factorcurvesGHz-days
5000050000001480.030
250000250000005410.557
50000050000000150.031
10000001000000001,4215.848
30000003000000001,12013.83
30000003000000001531.889


Lucas-Lehmer results:
No L-L results for M13807


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T19:11:49Oliver KruseOliver-PC
5786568929
FF72A8989C65C6__no
2017-09-21T19:22:08Oliver KruseManual testing
5786568929
FF72A8989C65C6__no
2017-10-12T16:01:15kkmrkkblmbrbkManual testing
5786568929
FF72A8989C65C6__no
2020-04-17T13:47:30Oliver KruseManual testing
5786568929
6B00B168A65768__no
2021-10-14T09:24:51mikrNitron
5786568929
291102086785587367516962179944541201
6B00B168A6576871no


P-1 factor-bounds graph:
B1 = 50000 (P-1 stage 1)
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
TF factor-bounds graph:
230
240
250
260
270
280
290
2100
2110
2120
Last modified: 2022-02-06T16:46:59+00:00