Compare 671 vs 680
| Property | 671 | 680 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 5 |
| Prime factorization | 111 × 611 | 23 × 51 × 171 |
| Prime factorization | 11 × 61 | 2 × 2 × 2 × 5 × 17 |
| Divisors count | 4 | 16 |
| Divisors | 1, 11, 61, 671 | 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680 |
| Number of properties | 1 | 0 |
| Semiprimes | 201st | |
| Roman numberals | DCLXXI | DCLXXX |
| Base 2 | 10100111112 | 10101010002 |
| Base 3 | 2202123 | 2210123 |
| Base 4 | 221334 | 222204 |
| Base 5 | 101415 | 102105 |
| Base 6 | 30356 | 30526 |
| Base 7 | 16467 | 16617 |
| Base 8 | 12378 | 12508 |
| Base 9 | 8259 | 8359 |
| Base 10 | 67110 | 68010 |
| Base 11 | 56011 | 56911 |
| Base 12 | 47b12 | 48812 |
| Base 13 | 3c813 | 40413 |
| Base 14 | 35d14 | 36814 |
| Base 15 | 2eb15 | 30515 |
| Base 16 | 29f16 | 2a816 |