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|---|---|---|---|---|
| Cardinal | two hundred sixty-three | |||
| Ordinal | 263rd (two hundred sixty-third) | |||
| Factorization | prime | |||
| Prime | 56th | |||
| Greek numeral | ΣΞΓ´ | |||
| Roman numeral | CCLXIII,cclxiii | |||
| Binary | 1000001112 | |||
| Ternary | 1002023 | |||
| Senary | 11156 | |||
| Octal | 4078 | |||
| Duodecimal | 19B12 | |||
| Hexadecimal | 10716 | |||
263 (two hundred [and] sixty-three) is the natural number between262 and264. It is also aprime number.
263 is the smallest prime number in base 10 whose expansion in any smaller base is never prime when interpreted in base 10:[1]
| Base | Expansion of 263 | Factorisation of expansion in base 10 |
|---|---|---|
| 2 | 1000001112 | 467 × 214133 |
| 3 | 1002023 | 2 × 50101 |
| 4 | 100134 | 17 × 19 × 31 |
| 5 | 20235 | 7 × 17 × 17 |
| 6 | 11156 | 5 × 223 |
| 7 | 5247 | 2 × 2 × 131 |
| 8 | 4078 | 11 × 37 |
| 9 | 3229 | 2 × 7 × 23 |
It is also:
It is also a strictly non-palindromic number and ahappy number.[7]
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