Compare 199 vs 201
| Property | 199 | 201 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 1991 | 31 × 671 |
| Prime factorization | 199 | 3 × 67 |
| Divisors count | 2 | 4 |
| Divisors | 1, 199 | 1, 3, 67, 201 |
| Number of properties | 10 | 1 |
| Additive primes | 27th | |
| Centered triangular primes | 4th | |
| Chen primes | 36th | |
| Emirps | 15th | |
| Lucas primes | 7th | |
| Primes | 46th | |
| Prime quadruplets (4th member) | 4th | |
| Prime triplets (3rd member) | 14th | |
| Semiprimes | 63rd | |
| Sexy primes (2nd member) | 26th | |
| Twin primes (2nd member) | 15th | |
| Roman numberals | CXCIX | CCI |
| Base 2 | 110001112 | 110010012 |
| Base 3 | 211013 | 211103 |
| Base 4 | 30134 | 30214 |
| Base 5 | 12445 | 13015 |
| Base 6 | 5316 | 5336 |
| Base 7 | 4037 | 4057 |
| Base 8 | 3078 | 3118 |
| Base 9 | 2419 | 2439 |
| Base 10 | 19910 | 20110 |
| Base 11 | 17111 | 17311 |
| Base 12 | 14712 | 14912 |
| Base 13 | 12413 | 12613 |
| Base 14 | 10314 | 10514 |
| Base 15 | d415 | d615 |
| Base 16 | c716 | c916 |