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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 #1100000009077027438 1,910 digits created 2026-08-11

Value

20047084584238335839830917036259622595439772339501750932379724652409844233226007813328442161974703082868756248092623534291951544759309165128236139254410294631502399927187059358626984138537258997297908199741288771612841139053841568738193805586107045168265553018650619200277163459527600653766736255623669574508176702306490878676290421209610290790604916265302368354838487375983818036989220210346880584573169900108358001263429262266178756942084737989199559919736867371782069924004249084573764402953247726640918615278142894793476973545060228228420063764807356212913446208125822473352814396847928027698997353966398102753339584315466019724960440799180750103228028931916937669638848651012463665172322177148065996103094026538733504707275520055518930476595070315878719193164285435829520226137545620553450421626484506750753748373644151527672243463242618614520614127658971501348756075241815537221649546130169258616675844156016309032890242574499278114872535875402198830245146785733990053469439662874857645346391656660876960038249828942138880586712249739911320113550657724341083526876464585394497955537506930959375620880302890731224177931168739574938666996573176604333478376062302970823028602016274709246370641553222945345788383260167141597646218271175446852118623642230979081949326813844839970816197791193178366344364268358144020423805086040506733604411994782662059621136081958024985571596720101305955562965232314776194525504713052121621237457129941817978441048317295669936632565074054767291212735434228071902516612847051765083531400871179560965657763800102053751056152881589192957626946895757716221056539510853025578451019859115749997527255465179805310699470300418948027430511042135867671475814255999635019775037431126577920423281694891000897606219058569088336677452070398955711299175359449347689456051322854064306797883284667804283526210841338562359441885792926031030657606920579706359001171069534571797507848093114437029
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 73 of the certificate chain of a 2,942-digit prime (202 intermediate primes).

Certified number2,942-digit prime
Certificatedownload
Certificate chainshow step 73 of 202

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009077027438 --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":1100000009077027438},"decimal":true,"detail":2}}'