factordbrpc · fdb
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Inverse home prime · Base 17 of 7199 length 18 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 4 7199 23×313
1 Fully factored 5 90480 24×3×5×13×29
2 Fully factored 11 12220970202<11> 2×33×7×19×277×6143
3 Fully factored 15 7285990167…81<15> 59×73×169166244883<12>
4 Fully factored 17 1412893393…99<17> 829×3742649×4553819
5 Fully factored 18 5400277435…09<18> 3×2087×8625263433…69<14>
6 Fully factored 19 7203906271…31<19> 3×2179×4748813×232062251
7 Fully factored 21 4678360829…18<21> 2×3×67×2131×3359×161201×1008571
8 Fully factored 25 2886957204…26<25> 2×3×29×257×6455917537…57<20>
9 Fully factored 28 1558301550…64<28> 24×37×2800249×9400114533…33<18>
10 Fully factored 33 5476715759…11<33> 3×1381×12791×283764525197<12>×3642022867…51<14>
11 Fully factored 36 5121807515…27<36> 13×67×79×180350509×4127248652…67<23>
12 Fully factored 38 2404626843…79<38> 35×13×29×61×2293×15696179×40753259×2933660747…13<13>
13 Fully factored 45 2877940731…70<45> 2×3×5×101×49169×1931736303…51<37>
14 Fully factored 48 2290805061…91<48> 599×3220239450…77<16>×1187608084…17<30>
15 Fully factored 49 5779042489…77<49> 757×2441×22025023×1419959174…27<36>
16 Fully factored 50 8272997909…24<50> 24×31×1667943126…69<48>
17 Composite 55 4026009231…52<55> 22×211×424771×1122994064…73<47>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (47 digits) of term #17:
11229940645323631687880105076211909722591126773
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 '7199' --type 67 --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":"7199"},"type":67,"part":"last20","fr":0}}'