Compare 155 vs 165
| Property | 155 | 165 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 51 × 311 | 31 × 51 × 111 |
| Prime factorization | 5 × 31 | 3 × 5 × 11 |
| Divisors count | 4 | 8 |
| Divisors | 1, 5, 31, 155 | 1, 3, 5, 11, 15, 33, 55, 165 |
| Number of properties | 1 | 0 |
| Semiprimes | 51st | |
| Roman numberals | CLV | CLXV |
| Base 2 | 100110112 | 101001012 |
| Base 3 | 122023 | 200103 |
| Base 4 | 21234 | 22114 |
| Base 5 | 11105 | 11305 |
| Base 6 | 4156 | 4336 |
| Base 7 | 3117 | 3247 |
| Base 8 | 2338 | 2458 |
| Base 9 | 1829 | 2039 |
| Base 10 | 15510 | 16510 |
| Base 11 | 13111 | 14011 |
| Base 12 | 10b12 | 11912 |
| Base 13 | bc13 | c913 |
| Base 14 | b114 | bb14 |
| Base 15 | a515 | b015 |
| Base 16 | 9b16 | a516 |