factordbrpc · fdb
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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 #1100000009018808126 873 digits created 2026-07-29

Value

222215594478992979934315683438714526021275294993102136813511611042028885112250572668918492090783489324347564854139445551500916662226499821444519424961742757380795786526276251842628204582725982029812304362522369948907385702674460080277138521214572896851174661313166555724153908665428443732443567957231463128922194234325793656876510902997537306810125812290859070420136811356630626190167815961353385173929438244327557220407493871586301013271904940729271253724116836708777498605395225790568558856299117399062624590573289915867795408424533204464128962853731540404282707647475804330112223364954358732324130205658023371113556658390601869057766357807359528430047794310277946543870033189739936291187669483382024647217176816959406409602134701754255999375423480244866552059490849879990129785111823114639146854817658736884084411949861398295652093143120940794989852745766040786198821241
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 1,026-digit prime (67 intermediate primes).

Certified number1,026-digit prime
Certificatedownload
Certificate chainshow step 11 of 67

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018808126 --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":1100000009018808126},"decimal":true,"detail":2}}'