Factor Info

ID 21678
Size 566 digits / 1878 bits
Status composite
Value 15724104525446131977455437220289520957982947025908134820108101861094947732418523469171334935995452514411145767206158431872978799541365820885506884744457524362034271649850709129798427541458305989057728587286251268865230402448872650439674177680096926629894940253608461824515367123966815382750895945281070644848393511072067886728128490418216543116260512674786522904443443384722962555039429952214974987010373378195761668318502158221164514204084831560381293326306937551679528029500438325983227146751338195018198233279771805674028698513635113992199287796183494979745751883

Factorizations

Primary (ID: 6676) 2047572230657338751575051 (proven prime)
(ID: 21679) 7679389420317627438737628030286056162999734059961347657665678740238327007323547226753957473423576939325694023945471558494578117525382259973107399544625206592451679406550305912601821885318570307671326479731348294447563950178567893727637649361133997291172195975632313063593431110129867577604878530078322921976105226708195173439088078920548589418169944510575086272104142144060073368096401762285198483375806562654226388752121725789731398777176204780623797076344167866222480437544627117455390012059309115436390519708885813205005720218584353015233 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.