Factor Info
| ID | 28920 |
| Size | 185 digits / 613 bits |
| Status | composite |
| Value | 17536795507495967063654072620969992145564128365135442035145298506202288180724939976744515550479922626189123104860311038107383284974206536465772699209464233931829554388089561713588748379 |
Factorizations
| Primary | (ID: 16423) 16780474190283346236492912310202415541658656215262750198722442398037888879 (proven prime) |
| (ID: 28921) 1045071510413607089151776445511235044271206169819765151101179350088298565070362081903944973125608964118095980501 (proven prime) |
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.