Compare 407 vs 419
| Property | 407 | 419 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 371 | 4191 |
| Prime factorization | 11 × 37 | 419 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 37, 407 | 1, 419 |
| Number of properties | 1 | 6 |
| Chen primes | 58th | |
| Good primes | 26th | |
| Long primes | 30th | |
| Primes | 81st | |
| Semiprimes | 128th | |
| Sophie germain primes | 22nd | |
| Twin primes (1st member) | 22nd | |
| Roman numberals | CDVII | CDXIX |
| Base 2 | 1100101112 | 1101000112 |
| Base 3 | 1200023 | 1201123 |
| Base 4 | 121134 | 122034 |
| Base 5 | 31125 | 31345 |
| Base 6 | 15156 | 15356 |
| Base 7 | 11217 | 11367 |
| Base 8 | 6278 | 6438 |
| Base 9 | 5029 | 5159 |
| Base 10 | 40710 | 41910 |
| Base 11 | 34011 | 35111 |
| Base 12 | 29b12 | 2ab12 |
| Base 13 | 25413 | 26313 |
| Base 14 | 21114 | 21d14 |
| Base 15 | 1c215 | 1ce15 |
| Base 16 | 19716 | 1a316 |