factordbrpc · fdb
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Conway climb · Base 17 of 48 length 24 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
4 Fully factored 6 277260 22×3×5×4621
5 Fully factored 8 51394601 19×2704979
6 Fully factored 9 461318790 2×3×5×15377293
7 Fully factored 11 15318596039<11> 59×259637221
8 Fully factored 11 24469618928<11> 24×1867×819149
9 Fully factored 12 267730474926<12> 2×3×44621745821<11>
10 Fully factored 13 4432373176…10<13> 2×5×7×53×73×16365887
11 Fully factored 16 1351087406…27<16> 3×43×266983×39229261
12 Fully factored 18 5302957893…30<18> 2×5×31×1710631578…43<16>
13 Fully factored 21 1119432515…17<21> 32×13×137×6983795093…73<16>
14 Fully factored 22 2617618580…44<22> 24×3×20543×2654613270…21<16>
15 Fully factored 24 5370824023…85<24> 5×29×37×463×2162171833…23<18>
16 Fully factored 28 5991198753…89<28> 3×1997066251…63<28>
17 Fully factored 29 6189977295…02<29> 2×2791×21419×5177260684…19<21>
18 Fully factored 30 8717506493…71<30> 3×13×29×53×101×767323×1876524397…39<18>
19 Fully factored 34 6288349300…21<34> 16189×3884334610…89<30>
20 Fully factored 35 9342107561…62<35> 2×4671053780…81<35>
21 Fully factored 37 1010647682…75<37> 3×52×5483×8893×2763579628…99<27>
22 Fully factored 40 7817104198…49<40> 29×53×947×2213×2426837183…07<31>
23 Composite 43 1174789590…97<43> 1174789590…97<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 #23:
1174789590093270350391082868616847292956297
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 '48' --type 102 --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":"48"},"type":102,"part":"last20","fr":0}}'