factordbrpc · fdb
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Conway climb · Base 27 of 130 length 20 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
0 Fully factored 3 130 2×5×13
1 Fully factored 4 1606 2×11×73
2 Fully factored 5 47458 2×61×389
3 Fully factored 7 1107740 22×5×97×571
4 Fully factored 9 806267281 47×17154623
5 Fully factored 11 18225917606<11> 2×13×31×22612801
6 Fully factored 14 1893481159…87<14> 53×357260596079<12>
7 Fully factored 15 4045139273…90<15> 2×5×41×109×9051553531<10>
8 Fully factored 18 3282983721…82<18> 2×7×2344988372…13<17>
9 Fully factored 19 9179222636…94<19> 2×1013734009<10>×4527431533<10>
10 Fully factored 21 2294419940…78<21> 2×11×29×47×7651637232…73<16>
11 Fully factored 25 5187999012…86<25> 2×29×467686213×1912569931…09<15>
12 Fully factored 28 3202639215…35<28> 5×6405278431…27<27>
13 Fully factored 28 8490742338…42<28> 2×467×107856160033<12>×8428568708…61<14>
14 Fully factored 30 1119604503…03<30> 7×43×491×691×598799×1830870112…37<16>
15 Fully factored 33 2181735071…90<33> 2×5×71171×118619×2584310466…41<22>
16 Fully factored 35 4934046680…28<35> 22×131×645941×1457736793…67<27>
17 Fully factored 39 9226516175…05<39> 5×1699×3191×185299×3999814794…61<13>×4592346005…31<14>
18 Fully factored 43 1644195234…56<43> 25×43×229785377×5200110395…03<31>
19 Composite 45 5154717697…10<45> 2×5×5154717697…31<44>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (44 digits) of term #19:
51547176976301070252598174721480704700222431
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 '130' --type 112 --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":"130"},"type":112,"part":"last20","fr":0}}'