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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 #1100000009079480069 1,719 digits created 2026-08-12

Value

266747255770926779997536957799934179387685141384808948788688895304613966629493547113176380102233515476471452619422888274811456055648629052553348273773769668668173203707366738077708067550769454307871332322668534548840877779790188071557766545216458630899647583677881004504453724476067136839484702454842423848029524011602900046906200670236290230321556600930795782533374639056306425867646321286202913515887040793321211342853335632051769425914567806903159885646658392553052464648166719318486305785859271972965561742760861757219969058499541121334574398827125576138207214457158027465107880208595351295363517536607604445567088772903259602551234198538882876712267678558183986965772340941917349069431294836980868160557002011126145116008560762272370524085354814742933181556084759682339631925646686969848585396524597374997307228175870578311904128414238943869985280792928780014368484126011252874987758608089925697951972264865364168419614482438769434558636712778145232286552852570737066106533431572157010443521043954388081734645398037884017075079590129820334903745903946219625110708162165918854921398480651956015366041114626148968044018117200540815892387009102684953439346822320160576402310012940415427399562596261813214597823544202987471480007297016032141674031452793423952066513424356523418987094799002842160141824365296213708008140726439326781043461141551194361109995145240035434583982508872382586735485405631100891386092374687498735779270375183528005561654529257941507956398971785392918773420655699475342924527930166716844075277695366342814326850476525116772081736363489286031595130951356152699067854343228135559157631852132064667530752817564201446853633492308148748797954878866006143130984494829003738275244069578944693383432193
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 1,849-digit prime (146 intermediate primes).

Certified number1,849-digit prime
Certificatedownload
Certificate chainshow step 13 of 146

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079480069 --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":1100000009079480069},"decimal":true,"detail":2}}'