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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 #1100000004918204918 1,680 digits created 2023-10-25

Value

279979947472381799362449079303767875295352776468784856186660625638339058622410156192986110514217572741566987235583444585793072722772452779736010567716340487368113051593866024164834027548804445263715096647291150449813653807086136976936736121728658055441037291774494665261167366950743470764719329963774264609869752224897206619170556089024288825634863727301408035961802905859012092130452422903840175900170158058538767154071407548235392604063355342707767619188222063169478997859936190509681414578538742838042920500815674377546727685875588861870018357454524455950685480228703193406022516756336271940708536772585490319635372900133000483321998288119214709690787533048730518059800515737497828190996817895357510877819599184489692872454500429637426614914561573766814983008236163999431086801236091713713751308382835619292456121400529408325710989779526062001180601750107312626454238683368970094706877886482007778582049622550622659898830934426620297306714021566565118962076803068578591418449880097844468091729491740725263828421155165162681179619466371407642162669821516250347357073581306625227413804202111766643246663704669882051465845072724247126841898328699149072857778946037267241089115188422979836431772082746538744973530116384102255072107223435765809161334560240112888989554282676018568843804223280812041865307255783010148595406793914736553941324299356483621741135099607362680911193647648702767839064491515771315980485843315461977591609963915487763768446132080519211760236181678353363438613501055371137518797284203551681802334458836717650630626777181055833866845120443534969784724079964484292969002905637197899611775150878566982134526321512165975337116831742955585195830119867882653892021
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 23 of the certificate chain of a 1,983-digit prime (159 intermediate primes).

Certified number1,983-digit prime
Certificatedownload
Certificate chainshow step 23 of 159

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004918204918 --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":1100000004918204918},"decimal":true,"detail":2}}'