Factor Info
| ID | 1972 |
| Size | 93 digits / 309 bits |
| Status | composite |
| Value | 628763043392971319725745795827156712713111345611244787692139402494783342260511491301471256521 |
Factorizations
| Primary | (ID: 420) 37202043349013064289 (proven prime) |
| (ID: 1973) 16901303981993554130623895834218498490670828099781982225171416883131293289 (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.