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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 #1100000009047454803 1,198 digits created 2026-08-05

Value

3881591058292880795495410249049205924846419773505264681196337920895055413375803404662549474547662328657833111243068105754900070689268713057531625440443634979928276038863584486383166431663096044996949123259179900116018536051904086164821040219265587131851676659056907132411063572690939682010324530696132274678859445215013524369081926875723983147298822895982790431049606332807859096321481472935766966572805794636902467242326552522777143498801452675387141456065572802165041730905019921088824382923170287274672889628631790348864346959147317665124460556074937721401517835088997755785714108036949042219860343598753886053597842202147601486996093505921443799947969641756382262468939821729388491637610123966254573120952582100425320301749886091831399818254612877774463991902630576313837060149127976697929219900907385910428989886373414872368487857615865085757148040400620309586703196895575576959417692207190077669189042149226235129339103792164427151323201949213195681372909051847967438603425463704253663124744245505065969861271634640306331072191601040811872965047578773238029679167117450804030925759852574995729976044420197941393882960594886287953101846986737948931532170407212885785134932643197062076976246751
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,457-digit prime (118 intermediate primes).

Certified number1,457-digit prime
Certificatedownload
Certificate chainshow step 21 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047454803 --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":1100000009047454803},"decimal":true,"detail":2}}'