factordbrpc · fdb
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Inverse home prime · Base 10 of 514 length 26 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
6 Fully factored 12 247914111322<12> 2×41×47×64326443
7 Fully factored 13 6432644347…12<13> 22×1608161086…53<13>
8 Fully factored 15 1608161086…22<15> 2×3×89×143461×2099203
9 Fully factored 17 2099203143…32<17> 22×3×17×137×751110327559<12>
10 Fully factored 20 7511103275…22<20> 2×32×28909×575137×250972913
11 Fully factored 23 2509729135…32<23> 22×3×7×19×41681×1889143×199705949
12 Fully factored 27 1997059491…22<27> 2×19×23×131×926144539×1883343354…17<13>
13 Fully factored 30 1883343354…92<30> 23×3×89×3767×2340629290…91<23>
14 Fully factored 33 2340629290…22<33> 2×11×67×383186984317<12>×4144044429…59<18>
15 Fully factored 35 4144044429…12<35> 23×19×31×97×9066661188…33<29>
16 Fully factored 38 9066661188…22<38> 2×11×27631×823741×9427739×33787153×568431676193<12>
17 Fully factored 41 5684316761…12<41> 23×7×11×67×4969×3316571857<10>×8357268368…87<23>
18 Fully factored 45 8357268368…22<45> 2×4178634184…11<45>
19 Fully factored 46 4178634184…12<46> 26×33×12279271153<11>×277663923913<12>×7092487323…11<21>
20 Fully factored 53 7092487323…22<53> 2×3×137×239×146424767×1184113411…21<19>×2082193123…37<22>
21 Fully factored 58 2082193123…32<58> 22×32×7877×2605303×1372033771<10>×2054161669…37<37>
22 Fully factored 62 2054161669…22<62> 2×163×5433061×1159771520…27<53>
23 Fully factored 64 1159771520…32<64> 24×3×89×7907970091…61<28>×3433018768…21<32>
24 Fully factored 67 3433018768…22<67> 2×337×7557693039…99<30>×6739489986…97<34>
25 Composite 68 6739489986…72<68> 22×3×5616241655…81<67>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (67 digits) of term #25:
5616241655271679388271366722933831463141086618366973009269313082781
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 '514' --type 20 --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":"514"},"type":20,"part":"last20","fr":0}}'