factordbrpc · fdb
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Inverse home prime · Base 4 of 24 length 42 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
22 Fully factored 21 4966908227…82<21> 2×3×7×13×19×102063449×469104557
23 Fully factored 23 3301029859…82<23> 2×32×733×2501917431…03<19>
24 Fully factored 24 1639656607…82<24> 2×7×67×11131×1570420234…69<17>
25 Fully factored 25 4215564718…86<25> 2×3×13×79×113×622577×9724394100…03<13>
26 Fully factored 27 1710733501…94<27> 2×11×17×860125807×5318005472…83<15>
27 Fully factored 28 2338883541…38<28> 2×3×67×7589×29243×2621658187…97<17>
28 Fully factored 30 1153017464…70<30> 2×5×11×13×349787×4888861×4715073789…67<14>
29 Fully factored 32 1359027492…18<32> 2×3×73×2292523×730145909×1853662969…23<14>
30 Fully factored 33 3419404639…14<33> 2×13×7907×158489×1049460953…93<23>
31 Fully factored 34 2884736302…58<34> 2×3×4842054571…73<16>×9929449917…41<17>
32 Fully factored 35 2861969084…86<35> 2×11×222493×5846903221…41<28>
33 Fully factored 35 9809475828…54<35> 2×151×3248170804…77<33>
34 Fully factored 36 3326126903…54<36> 2×227×409×1791264232…89<31>
35 Fully factored 37 1878276684…90<37> 2×5×17×23×57937459×8291314063…11<25>
36 Fully factored 39 1458623395…90<39> 2×5×7×397×647×11411×7109296746…33<27>
37 Fully factored 41 1250680710…62<41> 2×45416740559<11>×164988790349<12>×8345378807…41<18>
38 Fully factored 41 6305589946…70<41> 2×5×19×31×12161×8803211617…23<33>
39 Fully factored 43 3780950599…06<43> 2×3392867×27857473187<11>×2000149465…07<26>
40 Fully factored 44 2306015331…94<44> 2×113×96868523×148578587×1292218789<10>×5486290477…71<16>
41 Composite 46 1738674854…54<46> 2×97×17242261×5197834272…31<36>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (36 digits) of term #41:
519783427278114658104154848861495031
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 '24' --type 14 --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":"24"},"type":14,"part":"last20","fr":0}}'