factordbrpc · fdb
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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009088757611 1,895 digits created 2026-08-16

Value

19991606099346747763259248894140684276013471606149175438018620894356193486631652588253490614398695233448294362388150893663294568899327778421913849222272180236726496951547249271767486249277045472911572907973280331885239121469374406384243553716377766298813303496787294979237141724248529741372436659762328190889924670827130196385338331407750505190850437784430086522825152825549882161131771154436594259703767009362004749513359479277587586503584101873092941004811668861724153623994051574666821023790291189054853432373954447287308127896841373186126113936021963143306031166326254274408534701316027686643460335925587237342165146319223201103132796784411129991446118753403762563455042470003528715695026523888885407976465492487157298168210263733106328411382293059015582783523726802144200551249583257752360028735476314236361687325306727706712844583538547921338716665924212531573582256717614176578999919404901944592736679878818944297731226692471398676816803323112699618982131504530270009780834722724520546755173907618603655257702951605644102766292130240747163239914228318164111424364401317725046753985569095240495680221045166875411183538631485781129881359174213611203843476462273639041806446442480674173698138400926965865802527148506695940717927096328923018144053697791060769212251065690367529824278626049823737049931966676008463620316860446703368000743924341929819597468652930867657452820106536511405372037882437580166648474421088451770783299204129131015560223510661800627621019013913922322567202349505368654591708568680752110676546152678997779951645837400269793992440178874481727831218469860995895323848733920520071167795553536396742122039457897541336771212711189497467633816269991450929687547454650776765633296254935112880318625270968967961148953758925609193939416889149041083511834824953389180471507644584752951911061332975555375682140377393322693684295017424208759534819230943485993301487629517034087723
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 1,975-digit prime (156 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 9 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009088757611 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009088757611},"decimal":true,"detail":2}}'