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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 #1100000009086008862 1,893 digits created 2026-08-15

Value

238441013941965625637828384822608175110188631292135940752954691198444699604161520197795381896408360342489342997736618453742813964910253008190824526567516462198640585751804058844322857115554801800436945070225541829033208345164223795725394788129324874400071876211580771986262354872739228411801335961806276084090815807872493041667570506249490286360969132112487715421418756683023101279165293126008832455489114886204790769164182748440248414603839025336854635129505101891438447566258866838399053476835329228189177068129076801431289259650653905130530700652567416174028879092392090228550007281852485657193761699009582846136870418597687415205290884985641881676065422136099264644949491815249021417737606321457832084908899207145092067905184937590106003495648461324203456695831169509410543127585149773830040930076744125770290779904743099843834205504639250393305026695142959718129125075711294121647286897944092021763167633568114009186219411529697877673631657364972658922693998169618893356914958566051441365757096240758772479459714039420909607388830621931146066653347873770909668141712340336710109570897883817277620718246361843933938930811070385084427505405427911184697821080045804265666624578067244219459332342532004508200510089412391241373919698832287894129861718090319739437722671177546195655778070820151559151748348443419779776406507382251134410177650208734036205148005819142883081777920986153670547155128968261241846187195995218107795137171568364818533435871018101478331085288214059589472500432429623302395116047090109707682357929600275743528360218737418036578869382010873013062250329697156364912531275659071374193880174549463704764482575669815843965133126761017431709369800971339242303407053853744044575724154408614417840902988136255717475257694088499377227191494722395995422783398790528560839147445901377130204797519292096413958590620955264011444247362505540985875087769446789832029634247805501433059
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 6 of the certificate chain of a 1,964-digit prime (154 intermediate primes).

Certified number1,964-digit prime
Certificatedownload
Certificate chainshow step 6 of 154

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009086008862 --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":1100000009086008862},"decimal":true,"detail":2}}'