factordbrpc · fdb
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Inverse home prime · Base 12 of 246 length 27 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
7 Fully factored 10 1218897014<10> 2×12713×47939
8 Fully factored 11 11928909806<11> 2×11×542223173
9 Fully factored 11 78080137046<11> 2×17×857×2679667
10 Fully factored 13 8001444268…30<13> 2×5×293×2730868351<10>
11 Fully factored 15 6795274335…86<15> 2×251×1353640305…93<13>
12 Fully factored 17 2806908538…62<17> 2×43×3263847137…17<15>
13 Fully factored 18 5639927853…94<18> 2×2819963926…47<18>
14 Fully factored 19 3383956712…66<19> 2×2281×7417704323…43<15>
15 Fully factored 21 1845762202…50<21> 2×53×7×13×17×461×691×3527×424777
16 Fully factored 27 1357078100…26<27> 2×173×143413×419281×451987×14431421
17 Fully factored 30 6639192605…26<30> 2×11×17×271×118569223×5524619867…53<17>
18 Fully factored 33 8511793749…26<33> 2×19993×3625726855…47<14>×5871080654…53<15>
19 Fully factored 35 1563077369…34<35> 2×102547×7621273024…61<29>
20 Fully factored 36 2275699931…90<36> 2×5×23×37×3953867×6763373629…27<25>
21 Fully factored 39 7236350238…78<39> 2×3618175119…39<39>
22 Fully factored 40 4341810142…70<40> 2×5×101×431×1019×51079421×1916249414…63<24>
23 Fully factored 43 5101694680…30<43> 2×5×73×160512070097<12>×4353954718…03<29>
24 Fully factored 45 6708147428…70<45> 2×5×37×383×997×3821×6863×164785009937<12>×1098748267…11<19>
25 Fully factored 50 2173473446…10<50> 2×5×116381×1867550069…11<44>
26 Composite 51 6691769551…14<51> 2×223×5827×8581411×3000560563…97<38>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (38 digits) of term #26:
30005605637221744934409007625796214897
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 '246' --type 62 --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":"246"},"type":62,"part":"last20","fr":0}}'