factordbrpc · fdb
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Inverse home prime · Base 15 of 50429 length 14 Not fully computed yet - the last known term is composite. ↓ .elf file
Show sequence-development graph
Term size (digits) across the sequence
How the sequence develops - decimal digits of each term vs iteration.
nStatus DigitsTermFactorization
0 Fully factored 5 50429 211×239
1 Fully factored 5 53986 2×26993
2 Fully factored 6 404897 181×2237
3 Fully factored 6 503506 2×17×59×251
4 Fully factored 9 190802507 7×107×269×947
5 Fully factored 11 10787831362<11> 2×7×11×19×971×3797
6 Fully factored 13 9732033122…57<13> 47×97×2134685923<10>
7 Fully factored 15 1080684748…47<15> 31×3486079834…37<13>
8 Fully factored 15 7843679627…56<15> 22×157×15217×82078831
9 Fully factored 18 2103590672…57<18> 605599×347357025443<12>
10 Fully factored 18 2637742411…24<18> 22×23×43×373×1103×162065941
11 Fully factored 23 2102746238…57<23> 8059×72817×4797497×7468927
12 Fully factored 25 3270597685…84<25> 22×7×131×8369×1065428304…77<18>
13 Composite 28 4095864319…82<28> 2×2047932159…41<28>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (28 digits) of term #13:
2047932159932260292524506241
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
level 0 done · takes up to a minute
From the command linefdb · curl
fdb
fdb seq view '50429' --type 65 --part last20
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"sequence_view","params":{"start":{"expr":"50429"},"type":65,"part":"last20","fr":0}}'