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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 #1100000009071047989 1,708 digits created 2026-08-10

Value

9098687860171429381558094831348343829179149601296213084274926746855933407498999657250195489314369463443211932293412067352800929873298626253716863142687123182429488254605956205468367750690996731251671293498528024368313787092998186801987482123835463556462262880685801309807717847352586550014220939181792924792335939425165102594967785488281496558131914684675965138501174136276160131415969756072008077795130293677735884475087097277704408968742018515004836099628309825630873777110949798420566950277670140690471269585684077915693463243767337897841351528570360974345461356836248507707443879913255174487484645668791269237730957304915788412406744641079809595267100179140371262074733384845640063557093958898094567225872344021711454799883983648857806205553068829197773112208784848797891948494844065296332683934086539983155536861988801958456805400332832731558811751218120818130135680966510117872443079735785511521627224336991178952620302684874700078190658864611919007689901332975738291334366795590357119295479363861001448002692477321368359063647571432734869640120076931233272782024249538381166769562913815241842430669681664517693128992155362956725546726945148830681326393833852198287691947425270703174426978041766747275302191661701272928370161622327432436724587899751192996165386976687258833727374786161795974544157702923147155767791506742333296755621574816242951607051415587010592584247759025112555825367526989061034761095746473986329583557768674196225419950535595826776179223808372589527244588973257746413209164387180411572532757258171909833085714757852875936071247977912423517187432725548393875025219600791366474297888027777521689418896124144563384659413679426783222148122799047332128397869463659775872615404335646479
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 73 of the certificate chain of a 2,643-digit prime (201 intermediate primes).

Certified number2,643-digit prime
Certificatedownload
Certificate chainshow step 73 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009071047989 --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":1100000009071047989},"decimal":true,"detail":2}}'