factordbrpc · fdb
Sign in
Show
Open
Inverse home prime · Base 25 of 453 length 25 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
5 Fully factored 11 12772664427<11> 3×673×6326233
6 Fully factored 13 2471184782…53<13> 16829×146840857
7 Fully factored 14 5735970978…54<14> 2×3×683×719×839×23203
8 Fully factored 20 5532039093…77<20> 32×1049×1092103×5365418999<10>
9 Fully factored 24 5116862296…53<24> 7×11×19×31×11489×204299×4806724591<10>
10 Fully factored 27 2865031118…07<27> 397×7216703068…31<24>
11 Fully factored 27 4510439417…72<27> 26×24701489×2853091807…07<18>
12 Fully factored 35 1700575237…52<35> 22×3×1934358343…43<13>×7326181497…47<21>
13 Fully factored 38 4366744457…77<38> 41×86579×1230159303…43<32>
14 Fully factored 40 3003318612…91<40> 62393369201<11>×4813522095…91<29>
15 Fully factored 40 7344851831…76<40> 22×3×13×2029×216607×874987×3879527×3155902133…93<17>
16 Fully factored 46 7175690673…27<46> 37×9127×2124877679…73<41>
17 Fully factored 48 2075075858…37<48> 1399×64601×11178119×2054037148…77<33>
18 Fully factored 51 3060753865…24<51> 24×3×499×5813×194863×1128124201…73<38>
19 Fully factored 57 4202590143…27<57> 13×95231537×6759018062…71<13>×5022376711…77<35>
20 Fully factored 59 2923408006…38<59> 2×3×19×47×103×6701×3745439×1375399163…81<15>×1534540644…93<29>
21 Fully factored 65 3407364710…52<65> 24×41×659262297209<12>×7878735890…13<50>
22 Fully factored 71 7337644594…27<71> 4423974539<10>×4465565807…19<14>×5793770947…57<21>×6410711578…71<27>
23 Fully factored 72 3475253710…14<72> 2×32×4271×9007×282769×1239552641…93<21>×1431882908…27<38>
24 Composite 77 1987136717…27<77> 1987136717…27<77>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (77 digits) of term #24:
19871367173073980301312562098331684949843867137598842381341343954377996423827
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 '453' --type 75 --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":"453"},"type":75,"part":"last20","fr":0}}'