factordbrpc · fdb
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Home prime · Base 13 of 14 length 38 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
18 Fully factored 39 1634793298…70<39> 2×5×7×41×1901×2996393422…41<32>
19 Fully factored 41 3069871229…25<41> 52×601×4453013×4588299038…09<30>
20 Fully factored 42 8887000434…53<42> 17×269×10429×48835399×1623633432…57<13>×2350112252…63<15>
21 Fully factored 44 3659462058…22<44> 2×3×23×53×191×4390294003<10>×5966715367…01<28>
22 Fully factored 48 1368158739…76<48> 27×17×619×13381×574364239×207467807213<12>×6370305634…87<17>
23 Fully factored 57 1078846643…82<57> 2×4129×917237×3093316774…99<20>×4604461799…33<27>
24 Fully factored 59 1804660204…96<59> 23×4547×68311×7262562074…61<49>
25 Fully factored 62 4005600514…61<62> 7×71×271603×1286399×316727251×5098871747<10>×23864825951<11>×5985262440…07<19>
26 Fully factored 65 2319717934…44<65> 22×5839661×51226393×4748293136…83<20>×4082782579…29<30>
27 Fully factored 68 1483395314…86<68> 2×11×6868351481<10>×1919318621…73<18>×5114870395…01<39>
28 Fully factored 69 2584278941…96<69> 28×3×2761241622…99<13>×1022702592…43<16>×1191583279…21<39>
29 Fully factored 78 1577187808…18<78> 2×3×19×47×163×397×1872774071…93<18>×2428942326…27<52>
30 Fully factored 82 4656126990…51<82> 396577×3734453×4980097445…89<13>×1830655041…47<18>×3788605442…67<19>×9102203901…11<21>
31 Fully factored 84 3752865776…12<84> 22×61×586398013×4288474806…47<25>×6116146118…43<48>
32 Fully factored 87 1295628912…96<87> 22×25097×1290621302…67<82>
33 Fully factored 88 1714811274…32<88> 22×19081×1865991179…01<32>×1204053046…93<52>
34 Fully factored 90 2876891424…75<90> 52×1146917×7817239266…23<13>×8552104287…93<33>×1500807805…09<37>
35 Fully factored 93 1191190679…48<93> 23×3×2035954022…61<19>×5380980692…27<31>×4530442733…91<42>
36 Fully factored 97 1364639354…40<97> 22×5×107×5021×100841353×522306624967<12>×2411291406…91<70>
37 Composite 101 3933572166…68<101> 22×374123×67588057×159263457811<12>×3131938177…51<15>×7796746963…77<61>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (61 digits) of term #37:
7796746963079898181120636792276085015031725950534130483289577
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 '14' --type 31 --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":"14"},"type":31,"part":"last20","fr":0}}'