Definitions

193 (number)

193 (number)

193 is the natural number between 192 and 194. It is also a prime number.

Cardinal One hundred [and]
ninety-three
Ordinal 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 happy and lucky prime. 193 is a Proth prime as it is 3 × 26 + 1. It can be written as the difference between the product and the sum of the first four primes.

References

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