Compare 199 vs 409
| Property | 199 | 409 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1991 | 4091 |
| Prime factorization | 199 | 409 |
| Divisors count | 2 | 2 |
| Divisors | 1, 199 | 1, 409 |
| Number of properties | 10 | 9 |
| Additive primes | 27th | 47th |
| Centered triangular primes | 4th | 5th |
| Chen primes | 36th | 57th |
| Emirps | 15th | |
| Happy primes | 22nd | |
| Isolated primes | 39th | |
| Lucas primes | 7th | |
| Lucky primes | 22nd | |
| Primes | 46th | 80th |
| Prime quadruplets (4th member) | 4th | |
| Prime triplets (3rd member) | 14th | |
| Pythagorean primes | 39th | |
| Sexy primes (2nd member) | 26th | |
| Twin primes (2nd member) | 15th | |
| Ulam primes | 11th | |
| Roman numberals | CXCIX | CDIX |
| Base 2 | 110001112 | 1100110012 |
| Base 3 | 211013 | 1200113 |
| Base 4 | 30134 | 121214 |
| Base 5 | 12445 | 31145 |
| Base 6 | 5316 | 15216 |
| Base 7 | 4037 | 11237 |
| Base 8 | 3078 | 6318 |
| Base 9 | 2419 | 5049 |
| Base 10 | 19910 | 40910 |
| Base 11 | 17111 | 34211 |
| Base 12 | 14712 | 2a112 |
| Base 13 | 12413 | 25613 |
| Base 14 | 10314 | 21314 |
| Base 15 | d415 | 1c415 |
| Base 16 | c716 | 19916 |