Compare 1091 vs 1223
| Property | 1091 | 1223 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 10911 | 12231 |
| Prime factorization | 1091 | 1223 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1091 | 1, 1223 |
| Number of properties | 13 | 10 |
| Additive primes | 96th | |
| Chen primes | 122nd | |
| Cousin primes (2nd member) | 43rd | |
| Emirps | 43rd | 54th |
| Harmonic primes | 65th | 70th |
| Isolated primes | 119th | |
| Left-truncatable primes | 55th | |
| Long primes | 68th | 77th |
| Primes | 182nd | 200th |
| Prime triplets (1st member) | 32nd | |
| Prime triplets (2nd member) | 31st | |
| Sexy primes (1st member) | 79th | 87th |
| Sexy primes (2nd member) | 86th | |
| Sexy prime quadrupletss (1st member) | 8th | |
| Sexy prime triplets (1st member) | 29th | |
| Sexy prime triplets (2nd member) | 33rd | |
| Sophie germain primes | 43rd | |
| Twin primes (1st member) | 40th | |
| Roman numberals | MXCI | MCCXXIII |
| Base 2 | 100010000112 | 100110001112 |
| Base 3 | 11111023 | 12000223 |
| Base 4 | 1010034 | 1030134 |
| Base 5 | 133315 | 143435 |
| Base 6 | 50156 | 53556 |
| Base 7 | 31167 | 33657 |
| Base 8 | 21038 | 23078 |
| Base 9 | 14429 | 16089 |
| Base 10 | 109110 | 122310 |
| Base 11 | 90211 | a1211 |
| Base 12 | 76b12 | 85b12 |
| Base 13 | 65c13 | 73113 |
| Base 14 | 57d14 | 63514 |
| Base 15 | 4cb15 | 56815 |
| Base 16 | 44316 | 4c716 |