Factor Info

ID 15810
Size 393 digits / 1305 bits
Status composite
Value 570078700266286315044409694646734799406055603999552672450297353773684606111025542253181293087438379935411308303764695346203860064123797541983273766359781494311129831135945131142869899188466259235998933003449335636613552418569284667141472122405601440223914562212574745100826537043693705722254660169181457516568989778750312483016553932073073421313642774885023779745107904671993699618219177187161

Factorizations

Primary (ID: 10287) 2191165825376888084750157716424579062015865776131 (proven prime)
(ID: 15811) 260171409057199407068194838066878409882399653772899799796953285059462960540517289213190204330926940719435162290207946451270844375912985731685589270226152111384165388405885879038083147185495580409436120157608142064010089522064754429189811146020469296134532909371859466283333358102254528129317172977018895935549561441017504901922439579301638294131 (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.