factordbrpc · fdb
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Conway climb · Base 5 of 3353 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 1261964 22×11×23×29×43
6 Fully factored 9 121847418 2×32×72×11×19×661
7 Fully factored 11 16430606911<11> 73×225076807
8 Fully factored 11 18047342432<11> 25×7×19×4240447
9 Fully factored 12 337592131072<12> 29×72×29×464011
10 Fully factored 13 1809627417…36<13> 24×7×11×421×641×5443
11 Fully factored 15 2727256447…93<15> 3×7×314329×41316377
12 Fully factored 16 1579374015…52<16> 23×33×107×199×343395329
13 Fully factored 17 3279290683…54<17> 2×3×193×1663351×17025013
14 Fully factored 18 7933475147…38<18> 2×5387×286513×257005349
15 Fully factored 20 1747023271…99<20> 33×10331×6263146413…27<14>
16 Fully factored 20 2780739371…52<20> 24×3×11×2137×47843×515114099
17 Fully factored 21 5473744976…99<21> 199×2957×9302081894…93<15>
18 Fully factored 22 1489716506…93<22> 32×1091×2293×6616560914…79<14>
19 Fully factored 23 1615784584…04<23> 29×31×1018009441…07<19>
20 Fully factored 23 1103681798…57<23> 34×463×34278991×8585188609<10>
21 Fully factored 23 1838609879…34<23> 2×461×6845347×2913152367…01<13>
22 Fully factored 23 6376582993…51<23> 1511371×4219071950…81<17>
23 Fully factored 23 9008477376…56<23> 23×7×13×43×1856773×1549860982…93<13>
24 Composite 25 7742412020…18<25> 2×13×2977850777…43<24>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (24 digits) of term #24:
297785077722022172011943
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 '3353' --type 90 --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":"3353"},"type":90,"part":"last20","fr":0}}'