factordbrpc · fdb
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Home prime · Base 32 of 25 length 28 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
8 Fully factored 10 5617073633<10> 223×881×28591
9 Fully factored 10 7511535535<10> 5×7×47×2069×2207
10 Fully factored 15 1836689755…19<15> 11×467×6269×5703323
11 Fully factored 17 1289858126…87<17> 181×307×16369×14180869
12 Fully factored 18 2041259824…53<18> 61×67×1741×2017×14222927
13 Fully factored 22 2252918620…95<22> 3×5×1501945747…53<21>
14 Fully factored 24 1193899482…77<24> 37×3226755358…21<22>
15 Fully factored 25 1401047234…37<25> 32×71×43577×119886769×419684891
16 Fully factored 30 1226419478…71<30> 7541×109037×1491544465…63<21>
17 Fully factored 31 9335434564…35<31> 5×113×353×13229×172941311×2045905748…37<14>
18 Fully factored 34 6634053083…41<34> 3×101×1231×1778599888…37<29>
19 Fully factored 37 4118838265…97<37> 32×17×57440231×4686699735…79<27>
20 Fully factored 40 4233662274…83<40> 138342641×6288537469<10>×4866430166…27<22>
21 Fully factored 42 1795790153…03<42> 11×17×47×248971×1823765652…83<15>×4499852988…39<18>
22 Fully factored 45 5143752324…23<45> 11×587×56101769×1419948870…31<34>
23 Fully factored 48 5285745930…55<48> 5×1183923295…69<16>×4788427731…29<16>×1864746395…31<17>
24 Fully factored 51 2353770822…19<51> 3×77849×1454863×6927360405…79<39>
25 Fully factored 54 1472269727…27<54> 3×23×127×3895340735…91<22>×4313095932…19<28>
26 Fully factored 57 1825571890…99<57> 31×1009×44776850033<11>×3827213997…83<19>×3405726707…79<23>
27 Composite 59 5019388885…59<59> 3×31×5397192350…63<57>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (57 digits) of term #27:
539719235051620097788244838048247732403517822946231738963
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 '25' --type 49 --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":"25"},"type":49,"part":"last20","fr":0}}'