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 #1100000008942579728 2,373 digits created 2026-07-06

Value

280645029480445641962675258370121261868782313723750052633896526273756153490380289384743594869827971711015465762155526402134421625585550877048524267119850503973807762675238441148674016491415734306168124344327325448621649072610712302905292349609862308130460646680498879368587267718616289582527457745541452801033385161636478610382261301258601316158362453205062123717830802020182106842625087278006596893921584626858261341594409622082425303602190297465255859462853316945004900869167797631962285042556312652754772485814991718168745835084627156134256613243279103943614362536561036559981391015658462399072229949100471555250702146890188613027768728631922808534914048951725841663688434744491721064812637596547892580349046763534020458160103261544458409417919491998642145603773969705528402110328057984990614151606739473788371064453791308737203956134124484072357439999790800663575917552314303983506287239383229714686762467508483788222151604512911651343341927197041506706621916783921167027341746428520349508744217992053634789080743778816182905395115405016038763847305300305588978363404108512504426388171864480493757740764094664304352285693698460459721687570738667934690051967089204026638382109485729021239496156060726449777635916534879019912758052953280857756064304112512832694334491863513255243424615028666048935952318917149321977481553770046982688972109484920393745705427265272895265909429986949173368889434369352108352057505611046751686886263636337784251847360356361772124231821664365323948317787632227586864841610145810560064100237733360454548914316050909388143463777366573568484799808443391601947369962966198479772172950763427100321002586960139923121556100726167899102001093329881479540860929770321970365983785447137848735413165040208152409746408370074114132254386150999733785151195781201746180656918031051481992152857823207629727228340031801232045999614553654840917634845386551772685446214246456884122458447317963449565050224274606852187270419085586032378376550788671509755262984331422594122790244807065149454114275965135307080446922243586252276027313996490882190683694837044460213669309921733046542305294952421081686788248903489662995062221351231970078348669466106609469601819917127346442249985389797842229849249923986861196731762297470468464142013907078168422980054421346074681098785521494311866101917422259137948195041807235368214057549650125837448632793357001734001479347131233
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 31 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942579728 --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":1100000008942579728},"decimal":true,"detail":2}}'