Factor Info

ID 20553
Size 158 digits / 523 bits
Status composite
Value 18025400852368362668717877681434640707638302283247464296148221510502447146717350957856914293331254193013560551660184676931960986446886859166780343430176331651

Factorizations

Primary (ID: 6737) 1312315694449748688331 (proven prime)
(ID: 20554) 13735567538058269373249077449627756006179705334878998019141504716923707055506161044390381383587592072363191631592379024904424208722695721 (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.