Factor Info

ID 170980
Size 656 digits / 2177 bits
Status composite
Value 21865040720094007734135759131977173643445815582669455963356134261983220453813288855567800179063316753272830607179845192205426905248270333296457890845233790437497905625798381556596352259372278046777118880387645420359982998885775713227901008768952549868486218808857970245847014153850902081556181956901842629529184778616710602274279560235602336715818660785430961722784240592757746024706667801347592241946457992206668643710434684056668630090247715073951282244040245208115622748686444802542434843063404473042082873274567505230548783625564238930539050207996199379308152328905816451174625091451724062265394447152964979861883613630310441056844202345733043012374911

Factorizations

Primary (ID: 169665) 406604967744602024092343385941 (proven prime)
(ID: 170981) 53774652192218037678197959067857822500998159003285784351744453059462674255655004644541074492419363729621128205823054771684652639206104085957694456491307501189187352056164210621545297667574089881499168878413929498397053465350095813441359530855299338977322629093637820310881543761745544794769151288329732018881086031005120296981268815620589235904172454858011216949868604890917985579758151577070083846249231731391085858162144161570875451202879111381723599717406889860445301408631077707100669075096853282604389538791105886151348817137460738242553459346743097757717828775806144803452679576201424683082607343088163787082398390519171 (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.