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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 #1100000009051642387 2,484 digits created 2026-08-07

Value

122754909664592317167773932163665825472427143874493684143874571754191023523286585947590517538947364596766275253582448901422802861884804849428118994775412251775562911260553218329474225601368336421022053072375547114908801314793233244717404274483819184320689174645025958436239864421709717299775841934548253763612035568382507287338158355650380880506717896962328670447244617119771005948558038213614134707459723614196227777527713634240139691849844198343869667666026837397477090009529824834739161330534291694463188549320211460518008752856808053886469677194779995462012329938945805723913752028607714111643222272836471618747978758468533276726628711966873120448084436940271793712094239416429800970729690844579580653053512238624929635180455625344857934797766435373847589481558336320445862606323616866256114825554660553795650522846173985402887854999463283177218046283372201235780298062957365516382905992470302198761547538762737897214853069704318951112879388497917005913683057399710174414809162990191235639750854294946274378957404497990498352509357423025657566482177110922273851277047225176362678713117077006287449101108629036976613513359340190310875627238750724528181749304640209955053083481303262340796025048898426049643007441535533870325328396313463977887760515071927861233952140337117456413704746950887418362010411814117020743373385118799227684343805605290700720095311654203285334129472530803181808347537819942224585823277217332697586884377747208672985384948844524792675661832499602158269428535350628441486210525025911243032430367594227007744018084199013928526175504126360757834150486862488534653116541578598063241306030641165854262122910561715289827777966708202498321057529201400858829398673595131699086883753870973208272129798703658360840945281939746192432378005858319997074020406020310605041616050248061879159024339226485412968828129416256249684244851638699736780779231850344891347048268841819315561783641906552134790644467976837241010115688565606264049723890080997683669521672970624130429732691581438343690731246852020332791390099996453008401863483975480148173425935824731355543302114830285025687964415779209839186320056605268019450102723311195349001840163009147257309439307502473778549309835680816274573836872669429354125122775574786511542936597162404624865732704165243694055831596157279050459952331904366885523182180722462256039018913550035158743243316689908931770315543587324405833127289875467940397320075258594081421911343680303467685936949864580475129385852660997069845920949103019479
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 22 of the certificate chain of a 2,823-digit prime (204 intermediate primes).

Certified number2,823-digit prime
Certificatedownload
Certificate chainshow step 22 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009051642387 --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":1100000009051642387},"decimal":true,"detail":2}}'