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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 #1100000009057951379 1,216 digits created 2026-08-08

Value

1456210748359688985171227318602024785447691796352280271971471066459949864301664071459359057038579204718894635638989618044730267776165682385767126304064844799392821532179675445199169727678698694447791221105065034717597667193792616950414702920837942556605313302667159187333987373265939739237696450660333381756871286285746564486770992022206884973117052277774757968464851554863751042848914948584592355392828870164853661964813331322378058616492619246829178622064822611769246200180291700117083748273883369858723079309819923537253452052732008062732842929972790843019978811554092808289554658598707603783389277697338573855162005325896709113147933221645821660190198384230565328225445713250087587184753311005603673067599346220215141149494315924121941272401917238533083428970219948630327447627199336504949678396105434970346116740971364632369547102420361350437694540616813653799766553601132390162847895180122850522863831705990655504606517919985173591314532846987117403834545975802062116153801611977928429548981588551806224939070699056910609318732236244691633114528974886210231257006517585229742765650024612312938521513530548605529050131324466312944671489526410722068461293238422453165936557540393028922585337583450413613244284337
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 86 of the certificate chain of a 2,254-digit prime (178 intermediate primes).

Certified number2,254-digit prime
Certificatedownload
Certificate chainshow step 86 of 178

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057951379 --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":1100000009057951379},"decimal":true,"detail":2}}'