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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 #1100000009077671175 1,141 digits created 2026-08-12

Value

1301556019742189901039728256524656658888591974837386427454511128752867673338387827867721586717552394612792511800059236695003006853301481878726591048978246414521074178883046973910825023629786007090868799984976574885967808323149955627889461464865240737776757081527554738590859778911059925665547276716201403165656978895602968870836826293460467577277940915430078836789747741761179071494202215719656073686172848948157327284568904624600571691212159699261187786312357468876685202942219499081294271822807315890219756252771659561906560250136221829267508272123428447180830081080841831006653123160838475294509074146140146531274324655289554271982743774297195103908829173889065916375408672316414952392760491059170998957967464095073771889440072234046073470597917192811423958293180080568948935839048752341856287629069169931723161088219394072748105389914278806608135083528379989658207337230704295996000367688233724579756980116927685597717141780785432420733231097294021987970485037305108703687687646908064618859754994753630965457124745654447113065155642005758488244594178485240363170232169348222587988674388435295123549435541622741247785155829237825904748181
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 73 of the certificate chain of a 2,022-digit prime (159 intermediate primes).

Certified number2,022-digit prime
Certificatedownload
Certificate chainshow step 73 of 159

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009077671175 --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":1100000009077671175},"decimal":true,"detail":2}}'