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 #1100000009051206173 1,427 digits created 2026-08-06

Value

61560591578505575799261927394090032532325914131488443094249790556561306357703161111617057595300564859299452004812577505493188381747652609112304924074067391367715590037880317993512938134433360279996019743891103772379572766669116238722458860180591716250418826627432489324029883586347983375126100176426880616873754591142507623583818211945998437256176457320346658703963981513917890067023187082336145724083126131139820990016853698388097953381658670242410044739551058386262148542655028297788709414154063064062516020459824256000435896434651559385149131441028527986342686479023544500828746313445831571104119811276295122085251881697370903788144354843208056518728589080284295089220360905664130881864595378102652541216522292895684118865625104856517754668645462301571007336553796986879008141989934022425435857187176329361467180773403641135070186289128329555737520240049334942594375926378064502432778935260467614315066281192397071746971436128429141132656103382550351212162547822236899120185190969247633331230949824757735661557448849949803328417446316265722059117787827479718075315969961821206926501600686121779408781686788399940571667853768237448242316168496419867234871049324752520827385453583150994578393476116268616143754287772457678569203573087863342753773178735754877452390727585458542066414346988666788505430639122257724547803405544372257786295462868521712962947990520863006783832178724258355175891770375996636089547855667911129849697
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 10 of the certificate chain of a 1,556-digit prime (132 intermediate primes).

Certified number1,556-digit prime
Certificatedownload
Certificate chainshow step 10 of 132

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009051206173 --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":1100000009051206173},"decimal":true,"detail":2}}'