factordbrpc · fdb
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Inverse home prime · Base 6 of 506 length 36 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
16 Fully factored 25 4397232340…34<25> 2×47×934127×5007784535…93<17>
17 Fully factored 27 1090085692…24<27> 22×197×1383357477…23<24>
18 Fully factored 28 1075698774…54<28> 2×92173×5835216246…49<22>
19 Fully factored 28 9800922571…24<28> 24×23×67×13187×3014382297…67<20>
20 Fully factored 32 1417317294…22<32> 2×41×374746564063<12>×4612279044…17<18>
21 Fully factored 33 2810537159…28<33> 23×613×5731111663…57<29>
22 Fully factored 35 1604344474…46<35> 2×13×59×9377×685943201×1625998690…97<19>
23 Fully factored 37 7704601851…84<37> 23×11×13×23×41×7141878926…27<31>
24 Fully factored 41 1554631589…86<41> 2×13×98653020953<11>×6060992566…87<28>
25 Fully factored 42 6155541424…20<42> 23×5×11×53×71×139×26177×1021750103…87<30>
26 Fully factored 46 2241408157…34<46> 2×4783×5018870354…91<20>×4668577734…39<22>
27 Fully factored 47 3715562805…00<47> 22×53×1637×164387×2761458069…77<36>
28 Fully factored 49 4674226031…50<49> 2×52×23×4064544374…59<46>
29 Fully factored 50 3160589705…64<50> 22×13×6078057126…07<48>
30 Fully factored 51 7877162036…54<51> 2×19×4570908770…49<14>×8305461470…41<17>×5460342205…87<19>
31 Fully factored 53 1576607643…88<53> 22×72×2269×3545137307…87<47>
32 Fully factored 56 1286165378…74<56> 2×1031×2200591×3082312661<10>×9195855348…77<36>
33 Fully factored 57 9411869384…32<57> 22×5701×13156501×1139353526…29<20>×2753378742…27<27>
34 Fully factored 60 1325007911…02<60> 2×104213621717<12>×3051030478…53<23>×2083614832…01<26>
35 Composite 61 2165826721…48<61> 28×11×61×79×7535764955…99<13>×2117906516…13<41>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (41 digits) of term #35:
21179065169247898362483958141426648713913
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 '506' --type 16 --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":"506"},"type":16,"part":"last20","fr":0}}'