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 #1100000004878372187 1,728 digits created 2023-10-25

Value

278806764943544240310563067786344700805755572173932095610909577457898429791348732053410367609133387223665823933548352778224722652258375001605853500476192709983156056851625436351005203168795656764057717029057656972402112056022887795314475832844796602514056955689722127230935433260165773111746652977680458117767308456910949113076804991695927892368904768812820125738710397262908879598112224152693514158636090763061965084976016232377316124860976411750539418224735857794463370273564002519076830623623971425676565409719353880390800975162141854173744970592145152715861193954872595596904098602064257226618540895595554098274855382117092116215242909056314213341752753861639620098159261690631052997998261887416817286253489421873207787120673546618487694778808913126912761619734939766918488061808741585860444716639495544111553001162670061779754857620238629809646841731228614342803663888122554420730674013126479306636202913807491950986718470445742408648717946164395335774745416553731748563225066993256792908446214647174152585208026491751818882216222677289184367085594940084553344239422999952120701968250213168279386457981570611799894693736661360779516163251972405806276885655360697965720858941170658975852147510173529998951517977807362423988646018504291422953411964202296061249390394470932712515669873214978129346300736341810007842210199001680723996695508058322237981033259819066315567576845311991534523323674260071256177362394428172486600384906144969160971354605907784897505854792173701003909470530618656679982950345983389523176725275701209327486117381872860956428150029654342307130008765506306486702612173634815023586269866303814927040064945194958933533861286741253117527926548490362989918056776157977696210924334184976201401080500172816857
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 94 of the certificate chain of a 2,424-digit prime (355 intermediate primes).

Certified number2,424-digit prime
Certificatedownload
Certificate chainshow step 94 of 355

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004878372187 --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":1100000004878372187},"decimal":true,"detail":2}}'