factordbrpc · fdb
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Conway climb · Base 7 of 240 length 25 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
5 Fully factored 7 2866219 223×12853
6 Fully factored 7 3760814 2×73×25759
7 Fully factored 8 89321350 2×52×79×22613
8 Fully factored 10 5457053829<10> 3×1609×1130527
9 Fully factored 11 50800556939<11> 11×1471×3139519
10 Fully factored 12 160737321001<12> 31×5185074871<10>
11 Fully factored 12 434264978102<12> 2×217132489051<12>
12 Fully factored 13 1573578634…49<13> 3×11×971×6947×7069
13 Fully factored 15 1074336457…19<15> 37×491×5913670157<10>
14 Fully factored 16 1236420416…85<16> 5×23×29×1427×259804313
15 Fully factored 16 8926497213…25<16> 52×11×4547×7138770589<10>
16 Fully factored 18 4243810009…04<18> 25×32×937×1572620215…09<13>
17 Fully factored 20 1087899604…22<20> 2×17×41744623×7664950571<10>
18 Fully factored 21 4502072199…29<21> 17×1867847×1417823710…71<14>
19 Fully factored 22 3318954977…35<22> 5×241×79067777×34834917431<11>
20 Fully factored 23 5354093059…78<23> 2×17×229×431×2833×15413×365393227
21 Fully factored 26 5320579724…54<26> 2×13×619×44798600257<11>×73795607713<11>
22 Fully factored 28 2507681963…82<28> 2×34×569×2720477731…69<23>
23 Fully factored 29 1944378952…25<29> 52×19×311×1546903961<10>×8508706850…61<14>
24 Composite 30 2891879155…75<30> 52×13×17×1093×4788810994…63<23>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (23 digits) of term #24:
47888109948171466007063
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 '240' --type 92 --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":"240"},"type":92,"part":"last20","fr":0}}'