Compare 1421 vs 1423
| Property | 1421 | 1423 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 72 × 291 | 14231 |
| Prime factorization | 7 × 7 × 29 | 1423 |
| Divisors count | 6 | 2 |
| Divisors | 1, 7, 29, 49, 203, 1421 | 1, 1423 |
| Number of properties | 0 | 6 |
| Cousin primes (1st member) | 49th | |
| Good primes | 53rd | |
| Isolated primes | 133rd | |
| Primes | 224th | |
| Prime triplets (1st member) | 36th | |
| Sexy primes (1st member) | 97th | |
| Roman numberals | MCDXXI | MCDXXIII |
| Base 2 | 101100011012 | 101100011112 |
| Base 3 | 12211223 | 12212013 |
| Base 4 | 1120314 | 1120334 |
| Base 5 | 211415 | 211435 |
| Base 6 | 103256 | 103316 |
| Base 7 | 41007 | 41027 |
| Base 8 | 26158 | 26178 |
| Base 9 | 18489 | 18519 |
| Base 10 | 142110 | 142310 |
| Base 11 | 108211 | 108411 |
| Base 12 | 9a512 | 9a712 |
| Base 13 | 85413 | 85613 |
| Base 14 | 73714 | 73914 |
| Base 15 | 64b15 | 64d15 |
| Base 16 | 58d16 | 58f16 |