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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 #1100000009054742895 1,238 digits created 2026-08-08

Value

39402043976971835326831567267679335002677190624846068729694964256119156844802892980063423330661628894879975160062996379038160969918116043636346761051630453567860427188338998984184389872973518358256897759435549071964319743755612294337290364571954411658550350906384888163007436261698173085659130114936254595477780057724058113465782442289014977618103459649122324973382846127826483844338983281259130829346260888319916281063220143104522070100242918513890059665798146558065965934102141740471410100913842091191876520693443080568607677328977074124823975970344309983197464361533304704600742051821650761653893531669348386690943415787809440162169475812044362129154537243616807874384179961938475225531459022588212260597836963052496868258341622714400831542437768124693586520553888786665660087981060302608442005546278017297609970137338368344519930739357386052640167154580978740385359753462035607421972766385778262061875325804321866672646772023796985979822815726418093574787135391251771476665472584911515922051965846608751887870438643234705215763110267178332071697001440450640692497015474957268846918804350113931034425656555592492422707010035926433713858220329339174327954443434727052594266744703669051540646010070799329886119985846297898400112536860873
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 89 of the certificate chain of a 2,316-digit prime (179 intermediate primes).

Certified number2,316-digit prime
Certificatedownload
Certificate chainshow step 89 of 179

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054742895 --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":1100000009054742895},"decimal":true,"detail":2}}'