299

299 is a natural number that follows 298 and precedes 300. It is an odd composite number, with prime factorization of 13 × 23, making it a semiprime. Its positive divisors are 1, 13, 23, and 299.

Representations in common bases include Roman numerals CCXCIX; binary 100101011; hexadecimal 0x12B; and octal 0o453.

In number theory, semiprimes like 299 are studied for factorization properties and related concepts in primality testing. Because 299 is small, it is not used in cryptographic applications, but it serves as a straightforward example of a semiprime in educational contexts.

As the 150th odd number, 299 sits in the sequence of odd integers as 2×150 − 1.