Factor Info
| ID | 18960 |
| Size | 153 digits / 508 bits |
| Status | composite |
| Value | 666409651181864210638208946559257864340730121450997372758325817656583045129178854964617993501258050393180950201553417662759314761730779659957018742899631 |
Factorizations
| Primary | (ID: 10277) 6725414756111955781503880188940925566051960039574573675843402666863 (proven prime) |
| (ID: 18961) 99088260776220699594448458777855218714320305439238757136382290554456612385774647423937 (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.