factordbrpc · fdb
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Home prime · Base 25 of 1099 length 19 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 1099 7×157
1 Fully factored 4 4532 22×11×103
2 Fully factored 6 819478 2×11×1932
3 Fully factored 8 23948943 3×7982981
4 Fully factored 8 37279856 24×31×75161
5 Fully factored 13 7947277809…36<13> 27×13×4776008299<10>
6 Fully factored 20 7761021462…74<20> 2×23743×24788429×65933221
7 Fully factored 23 4798132786…71<23> 32×13×401×461×2218406366…83<16>
8 Fully factored 25 1828784851…08<25> 22×3×10292647×1480656410…97<17>
9 Fully factored 29 1896175903…47<29> 267587×7086203377…81<23>
10 Fully factored 30 1557562044…56<30> 22×17×37×163381871×3789054514…71<18>
11 Fully factored 33 2994648345…96<33> 22×6203×1048799×1150778645…17<23>
12 Fully factored 36 1861515346…67<36> 3×19×3265816396…31<34>
13 Fully factored 36 3372209022…81<36> 1597×42223×362753×1378635539…67<23>
14 Fully factored 37 5674067769…92<37> 22×11×79×151×34509026549<11>×3132601091…83<21>
15 Fully factored 41 7278215736…33<41> 32×3191×13217467×1917376393…21<30>
16 Fully factored 44 6783135465…21<44> 112600679×468850433×996356863×1289556108…81<19>
17 Fully factored 46 6250593324…56<46> 23×2169196231<10>×54901317089<11>×6560692039…73<25>
18 Composite 50 1765020694…23<50> 7×2521458134…89<49>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (49 digits) of term #18:
2521458134343365171756292799020643303138171299889
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 '1099' --type 42 --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":"1099"},"type":42,"part":"last20","fr":0}}'