Factor Info
| ID | 131969 |
| Size | 154 digits / 509 bits |
| Status | composite |
| Value | 1577368960963053966132375674721518849496413623719233536661238656533296592899954593090241378522641729013436743760134027164922990220830997475858230045825741 |
Factorizations
| Primary | (ID: 131704) 399981195234791390040813065378761 (proven prime) |
| (ID: 167882) 3943607798954470370138436900454733109176612587639208540597314110236111494362221607649067927558169649360939233853859070181 (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.