Compare 1787 vs 1791
| Property | 1787 | 1791 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 17871 | 32 × 1991 |
| Prime factorization | 1787 | 3 × 3 × 199 |
| Divisors count | 2 | 6 |
| Divisors | 1, 1787 | 1, 3, 9, 199, 597, 1791 |
| Number of properties | 7 | 0 |
| Additive primes | 148th | |
| Chen primes | 173rd | |
| Cousin primes (2nd member) | 61st | |
| Primes | 277th | |
| Prime triplets (2nd member) | 45th | |
| Super primes | 59th | |
| Twin primes (1st member) | 56th | |
| Roman numberals | MDCCLXXXVII | MDCCXCI |
| Base 2 | 110111110112 | 110111111112 |
| Base 3 | 21100123 | 21101003 |
| Base 4 | 1233234 | 1233334 |
| Base 5 | 241225 | 241315 |
| Base 6 | 121356 | 121436 |
| Base 7 | 51327 | 51367 |
| Base 8 | 33738 | 33778 |
| Base 9 | 24059 | 24109 |
| Base 10 | 178710 | 179110 |
| Base 11 | 138511 | 138911 |
| Base 12 | 104b12 | 105312 |
| Base 13 | a7613 | a7a13 |
| Base 14 | 91914 | 91d14 |
| Base 15 | 7e215 | 7e615 |
| Base 16 | 6fb16 | 6ff16 |