factordbrpc · fdb
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Inverse home prime · Base 9 of 591 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 11 60816590201<11> 43×9161×154387
6 Fully factored 12 738428977087<12> 43×61×281520769
7 Fully factored 13 1847057770…93<13> 11×9091×18470393
8 Fully factored 14 8834331787…99<14> 17×43×223×541940323
9 Fully factored 16 2592083766…90<16> 2×5×7×13×9883×288216503
10 Fully factored 19 1004948807…61<19> 13×373×2072486713…89<15>
11 Fully factored 20 1223782679…87<20> 293×23970451×1742450609<10>
12 Fully factored 20 5467994644…53<20> 1021×6089×40559×216854843
13 Fully factored 21 5512159168…36<21> 23×11×79×7928882578…93<17>
14 Fully factored 24 3792359957…89<24> 11×13×41×4450926229<10>×14532464207<11>
15 Fully factored 27 2423605461…37<27> 7×82235669×4210208974…39<18>
16 Fully factored 28 1468009097…67<28> 19×23×97938959×3429981885…49<17>
17 Fully factored 29 8718553747…02<29> 2×7×170658671929<12>×3649119215…67<17>
18 Fully factored 30 8348014294…01<30> 611555563561<12>×1365045924…41<19>
19 Fully factored 31 3469763588…50<31> 2×53×30853×4498445647…47<24>
20 Fully factored 33 1742790012…13<33> 1372×10607×89015148127<11>×9834390302…93<13>
21 Fully factored 35 8716159269…37<35> 2083×204887×357794747×5708046782…51<18>
22 Fully factored 36 7710724801…76<36> 23×7×92459×470524609×3165014046…41<21>
23 Fully factored 40 3847918195…34<40> 2×73×577×4567695680…27<35>
24 Composite 41 2427460760…99<41> 59×4114340271…61<39>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (39 digits) of term #24:
411434027154540391088635074486476383261
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 '591' --type 19 --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":"591"},"type":19,"part":"last20","fr":0}}'