193 (number)
Encyclopedia : 1 : 19 : 193 : 193 (number)
193 is the natural number between 192 and 194. It is also a prime number.
| |||
| Ordinal | One hundred [and] ninety-three | ||
| Cardinal | 193rd | ||
| Factorization | prime number | ||
| Roman numeral | CXCIII | ||
| Binary | 11000001 | ||
| Hexadecimal | C1 | ||
In mathematics
193 is a prime number, the only odd prime p known for which 2 is not a primitive root of [4p^2 + 1]. 193 is a cuban prime, and a twin prime with 191. It is also a lucky prime.
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