Factor Info

ID 155253
Size 403 digits / 1337 bits
Status composite
Value 2531478330693688771630810470365880903538195155202145884911972402740147256534221062560450635201218945009195877277571032148342152333099816003602924417073939372258258646000625602864296629881617864482202322852089396479637438983147862257374577906504827203314413215659078342430195617282388466905623844702813015966596673744636898773093203726617944814331489095932292145415523304527218527706829994680345763001403

Factorizations

Primary (ID: 154830) 12391645502426330473763 (proven prime)
(ID: 155254) 204289118035051588514551866575365034747867322874729430094450624617904045323750640656884553269388272715474665489311902969644835029204666710272399859796521193384299978729800404163168579369218411529449494557185153733143955339111234341230073388073629772207933525578240696182499087017124441753441811698798004393492298975703894492888901137083259094513944548297818451579668448850199798281 (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.