What is 225?

225 is a composite number, located between 224 and 226. It is the product of 3 and 5 raised to the power of 2, making it a square number. In Roman numerals, 225 is represented as CCXXV. It is also a Harshad number, which means it is divisible by the sum of its digits (2+2+5=9).

Additionally, 225 has several factors including 1, 3, 5, 9, 15, 25, 45, 75, and 225. It is also a semiprime number, as it can be expressed as the product of two prime numbers (3 and 5).

In mathematics, 225 is used in various calculations, equations, and problem-solving exercises. It is frequently encountered in measurement conversions, geometry formulas, and algebraic equations.