Factor Info

ID 15687
Size 320 digits / 1061 bits
Status composite
Value 20766595794676397683350665721603363458474728889487253160185079352758665337427603116554771584918898578517548622589301076710809705484244461891844443511993166427136828209557775621321277275248843422296659405343107781289996545455701616759789031777146935564518684388976941215542430145927511636186294584624695129762124502646713

Factorizations

Primary (ID: 15688) 9176027840820822557769652003161198049458738352529 (proven prime)
(ID: 15689) 2263135656835448843290267434727205116272111414670446687909375529532392768112895617264875832490457010127707930536086503440716779348326693483027139542316743117694970418316806931788763480897961969149016269855718063529253042255405767542439284758653804981511138032084867446697 (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.