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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 #1100000009080479997 1,781 digits created 2026-08-13

Value

25288886397909416397396469759082904983574429969232642588846141666877201179811982144063851398437606130894781561817645256401037660531543039440520670324632867982896114776894809392217233669222685375246499045913079545203637232900316282504179655106202860685072144585424060881375943255363896036063065803242997158134770786935223581358953709829645344220041274057324432046448893697656890096078144510468915447741172343308823279511562412711353899259458719279762647425232011237616547739973312817530163040636471466540139659727232835130808052279060785652922762512364482623921294036371107563200559863107916795099936817341065701680162122486657237359257035226886737983467276636516498460789914964649451087203771246733393594200456813843033558811945698564064164126280097126001194511015699608991800820512243649072626888027179202334408147721466629056513894786586381634858527203797050584069974332631776192718538789653778825161323986083915517475181129280683364945472272532208499481251561475688319600353586079883719006273173092893165409074432001472003079006152702982513106122148692754877726836752204578601758980462884108036405675513739084652739150263367692582718937702187583403123596010606118054216677885642209835235511806125311254934433305527186098458374016641189945483241233496871477288844405813161256468882072166205052416507873315252608964909960701735605943424781379242468226401647575626836638010104222898047195168493165053738382756264790503052820562161407946279167510775690178650066375717983230589758302132087265678968512603115601618190851331427529400904164773902042473762059615418103969244184321644131264069991624731629303539526281366295820016626759264608450163407246267443771073319333559425054782661080256835254838807679558281534975589128347872492559466283033628722366094748506750339277430461801590339
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 2,062-digit prime (162 intermediate primes).

Certified number2,062-digit prime
Certificatedownload
Certificate chainshow step 27 of 162

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080479997 --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":1100000009080479997},"decimal":true,"detail":2}}'