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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 #1100000009091972853 1,222 digits created 2026-08-18

Value

7011479156998457267770979288029986225347594286696632427794314435077704289417389929840139977283658728842519580564996178102484848576970970909485294472206073302171988478125129062294677328192452156594540795632916255008282024343905931058314525391133510262690880411974997442729377279065885357794245847290834544750091072712720969518288026640171028030235141534529233339089166780797658878221398385583075254202142867658175498173234294633393825812838301530380175083483782304070012185087665240764176959028121843478753664389370679418792943686429793248469198340343207604010723725770502130397831182896091727706423254032311138018994485040979362632922482286397497014632619704431796661362348556477394013416605523375721316494467831864798855369472374593963608077644668449311466602312320989067957828124954477474317899362971564298023321958210299137150363667471043921112164399193911209971379356011407567154647963259689541793498168452403713720452036685817069635312380147112199782987617650726975137157850255249574387065642515815664425549506272344485320954876301479891913167565013698989515194874922710801531371421440013519215331366887471851569460903817710778490455711544795622618797316048544711873935644372387489878572363284076702914609625146908129
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 73 of the certificate chain of a 2,091-digit prime (169 intermediate primes).

Certified number2,091-digit prime
Certificatedownload
Certificate chainshow step 73 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091972853 --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":1100000009091972853},"decimal":true,"detail":2}}'