Factor Info

ID 20530
Size 258 digits / 857 bits
Status composite
Value 820146382234545656405433793354660575446460880572918581379317513333361848369375785942070513319690169938311514767382168228529287907928865578565130814112963345242953577779731029446560929915459459349300526620670693007304433741081399519704537591326529597333698461

Factorizations

Primary (ID: 6953) 43347650492220877561107611 (proven prime)
(ID: 20531) 18920203815469266055256400901986145579262916423999029809052740760099349554226302932905716369660881457369810146657685706565686853085419003004095228555738076790608421130186665423567618650156811700132046058074211129315719592599590157351 (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.