It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 204 is not a prime number.
For example, 240 204 can be divided by 2: 240 204 / 2 = 120 102.
For 240 204 to be a prime number, it would have been required that 240 204 has only two divisors, i.e., itself and 1.
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240 204 is an even number, because it is evenly divisible by 2: 240 204 / 2 = 120 102.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 240 204 is about 490.106.
Thus, the square root of 240 204 is not an integer, and therefore 240 204 is not a square number.
The square of a number (here 240 204) is the result of the product of this number (240 204) by itself (i.e., 240 204 × 240 204); the square of 240 204 is sometimes called "raising 240 204 to the power 2", or "240 204 squared".
The square of 240 204 is 57 697 961 616 because 240 204 × 240 204 = 240 2042 = 57 697 961 616.
As a consequence, 240 204 is the square root of 57 697 961 616.
The multiples of 240 204 are all integers evenly divisible by 240 204, that is all numbers such that the remainder of the division by 240 204 is zero. There are infinitely many multiples of 240 204. The smallest multiples of 240 204 are: