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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 #1100000009084007842 1,275 digits created 2026-08-14

Value

100740798251862617306647630996134017527924267211385007734068945153035529279121097243528446700074999223917414465235331116251195524755921981999663768157481338405177531261418078963755814460958390170865361875592722220947165467988737572760286710495069832324254059596154750729890249535519777445437598662392506489789774175162474831828522756309727303261619101936399532280733791740604996958471786283279503638195306930321815577378333219912665813152388524443131339887206686113376548285884767821250654508272029737719721371712550653340283331209358065754877401580683133077303180257887547325677748368798727756093979523217582728236584571856028733920993306148034040146473736527390359619172574197241318220352593390325877513296518448565569409894171224708364115052978545705159220989310594604201956159167282760663658160556685408879115527805078846451388531345398699626033486848152153355759972892450476811523981798477119071541056947256132375686143826137201259357617342321536013703794428344626052903069339276197561500017617556330965410388506665067510720383899367654711642071974855018729190918235188640019712341350904239002354809737714768006377029463897829840303693265688002149554733614768604516769225535558433945124755090744922618638001731439582405947585558149781887289381966334639920478762007623759
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 52 of the certificate chain of a 1,940-digit prime (149 intermediate primes).

Certified number1,940-digit prime
Certificatedownload
Certificate chainshow step 52 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084007842 --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":1100000009084007842},"decimal":true,"detail":2}}'