Factor Info
| ID | 16505 |
| Size | 166 digits / 552 bits |
| Status | composite |
| Value | 8140541320798706875265216204121744265309320134138320237324431695875746990478626185114153159638565571325540896659309881323162007990176936671814836827790555095781094659 |
Factorizations
| Primary | (ID: 16278) 4029666108840585686296627 (proven prime) |
| (ID: 16506) 2020152811901555030139208431039940767936578841496636424841274399698064049951504845982760899008175872647126088877306699525695570550125935276017 (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.