factordbrpc · fdb
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Inverse home prime · Base 33 of 745 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 3 745 5×149
1 Fully factored 4 4922 2×23×107
2 Fully factored 6 117284 22×109×269
3 Fully factored 9 319131518 2×101×757×2087
4 Fully factored 11 81702772835<11> 5×181×90279307
5 Fully factored 13 3244367461…37<13> 12041×269443357
6 Fully factored 13 9682985932…50<13> 2×52×7×27665674093<11>
7 Fully factored 17 3280930388…24<17> 27×7×19×1927238245…01<13>
8 Fully factored 26 8944598775…57<26> 101×3947×2243739141…31<21>
9 Fully factored 28 8780961309…67<28> 2063×4256403930…09<25>
10 Fully factored 30 1529623880…96<30> 26×2390037313…89<28>
11 Fully factored 37 3086656635…89<37> 37×79×732924641921<12>×1440788328…83<22>
12 Fully factored 40 2403075746…72<40> 22×421×1601×8913207993…83<33>
13 Fully factored 44 3798670466…49<44> 7×2030840462…57<21>×2672131166…51<23>
14 Fully factored 46 1601647243…95<46> 5×7×229547×1993550332…91<39>
15 Fully factored 48 2574606399…98<48> 2×23×79×347×479×4934513×10389056179<11>×8314584301…97<22>
16 Fully factored 53 1950380465…87<53> 17×792×4073×3295343×1369623500…89<38>
17 Fully factored 57 7538456229…56<57> 22×41×103×401×1112902126…43<51>
18 Composite 63 1565195141…12<63> 22×409069×88885217×1076173747…11<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:
1076173747978784892985418654104683828242515972411
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 '745' --type 83 --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":"745"},"type":83,"part":"last20","fr":0}}'