298

298 is a natural number that comes after 297 and before 299. In number theory, it is an even composite number with prime factorization 2 × 149. Its positive divisors are 1, 2, 149, and 298. It is not prime and it is not a perfect square.

In Roman numerals, 298 is written CCXCVIII.

In the calendar, the 298th day of a common year is October 25; in leap years it is October 24.

In science, 298 kelvin is commonly cited as a convenient approximation of room temperature, about 25 degrees Celsius (since 298 K is close to 25°C).

Beyond arithmetic and chronology, 298 may appear as a year designation in historical contexts or as part of catalog numbers, model identifiers, or numerical labels in various domains; there is no single universally recognized significance attached to the number.