Factor Info
| ID | 15311 |
| Size | 165 digits / 546 bits |
| Status | composite |
| Value | 135531067465098125653162638132229992261468199849882367993145053781779668584765840226469647957272069616900300112597096600421975415885714539850229569302765103339735819 |
Factorizations
| Primary | (ID: 3959) 1065107717756542892882802586807 (proven prime) |
| (ID: 15312) 127246348144551848476665523340671830018943526217603106550211801240711546191738384488431247550154626861609843126211445935643924728074317 (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.