Compare 419 vs 420
| Property | 419 | 420 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 5 |
| Prime factorization | 4191 | 22 × 31 × 51 × 71 |
| Prime factorization | 419 | 2 × 2 × 3 × 5 × 7 |
| Divisors count | 2 | 24 |
| Divisors | 1, 419 | 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420 |
| Number of properties | 6 | 0 |
| Chen primes | 58th | |
| Good primes | 26th | |
| Long primes | 30th | |
| Primes | 81st | |
| Sophie germain primes | 22nd | |
| Twin primes (1st member) | 22nd | |
| Roman numberals | CDXIX | CDXX |
| Base 2 | 1101000112 | 1101001002 |
| Base 3 | 1201123 | 1201203 |
| Base 4 | 122034 | 122104 |
| Base 5 | 31345 | 31405 |
| Base 6 | 15356 | 15406 |
| Base 7 | 11367 | 11407 |
| Base 8 | 6438 | 6448 |
| Base 9 | 5159 | 5169 |
| Base 10 | 41910 | 42010 |
| Base 11 | 35111 | 35211 |
| Base 12 | 2ab12 | 2b012 |
| Base 13 | 26313 | 26413 |
| Base 14 | 21d14 | 22014 |
| Base 15 | 1ce15 | 1d015 |
| Base 16 | 1a316 | 1a416 |