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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 #1100000009058379255 1,508 digits created 2026-08-09

Value

27796418766578421710338756603510944797637349100602123541112497105087579062142762923513844419961263163909427265162144246086259608022708613700913448131692082792515830005922985017173547809866224843140099521942092885924963272421461780132817924109211906900093300985391452523072368776625129999926431882435322465924369440900776792721645119146209444155570903118640316435812445462932403788286537471447717671119552407270820699079052569720560451332889668336670144671639167929790843666334883156945341984363680241844862667273945025873945931580511418440862853212465288210598166178609474770199273327860744029679750457277967691257901011981117685424894971924081251114763318780693709124655886585479837532809822440367775302669504174949262755792061934280302094422180115942095093379990102138070781285702974272856583666799272019417657495549572875445070004168786938043999285537868077454170218228679035330279409206233141831635134011000644624455268390382063152230448251325123827387062920146752826272842794561078026747343657678104827617655059930283556545352991377786861677214618253629705364782825240573408715487001009590010569984413283656773453497566825758072613248870828257687861045507142386268313236840397260792155441495169581852992331171595435093070697701071208868963354147439021675502080580168250157835411109233924912602045128979165704076388261349234778400727751623362015829424775993607558892869203111807771419894486634972659970936814246575262248873257754781097728987470139989170947618755130624353078935137028627369945887507911283
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 2,549-digit prime (189 intermediate primes).

Certified number2,549-digit prime
Certificatedownload
Certificate chainshow step 80 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058379255 --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":1100000009058379255},"decimal":true,"detail":2}}'