factordbrpc · fdb
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Inverse home prime · Base 9 of 12293 length 26 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
6 Fully factored 13 4561861804…17<13> 859×5310665663<10>
7 Fully factored 14 3484327741…02<14> 2×1742163870…01<14>
8 Fully factored 15 1567947483…11<15> 23×6817162972…57<13>
9 Fully factored 15 5521902007…40<15> 23×5×221197×62409323
10 Fully factored 18 2176078553…67<18> 7×19×42643×47917×800729
11 Fully factored 19 2035347745…23<19> 11×2767×147863×452248633
12 Fully factored 21 1277283718…94<21> 2×23×2776703736…39<19>
13 Fully factored 22 2024217023…40<22> 22×5×7×1307×3191×3466782898…93<13>
14 Fully factored 24 9791218870…99<24> 7×1398745552…57<24>
15 Fully factored 25 1258870997…20<25> 22×5×3803×17431×9495166929…77<15>
16 Fully factored 27 2681715594…88<27> 25×29×2889779735…21<24>
17 Fully factored 31 1382172689…32<31> 22×137×15499660411<11>×1627269804…69<18>
18 Fully factored 33 3015363800…85<33> 5×7×17×19×981077×2718729851…41<23>
19 Fully factored 35 6910646505…50<35> 2×52×7×37×853×1409×5808592931<10>×7643951868…17<15>
20 Fully factored 39 5487577664…18<39> 2×7×13×29×1039707780…81<36>
21 Fully factored 41 5525433424…08<41> 22×5737×240049×404969×2476850697…41<26>
22 Fully factored 43 3717620021…76<43> 22×6572977×1413978788…47<36>
23 Fully factored 45 4930239182…04<45> 23×12721×8870162154…87<14>×5461666654…19<26>
24 Fully factored 48 4840641359…69<48> 7×11×1327×326503×55890707×2596058530…91<30>
25 Composite 51 2556522900…70<51> 2×5×2814697×9082764151…71<43>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (43 digits) of term #25:
9082764151474957706933300863535300280251971
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 '12293' --type 19 --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":"12293"},"type":19,"part":"last20","fr":0}}'