It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 908 is not a prime number.
For example, 240 908 can be divided by 2: 240 908 / 2 = 120 454.
For 240 908 to be a prime number, it would have been required that 240 908 has only two divisors, i.e., itself and 1.
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240 908 is an even number, because it is evenly divisible by 2: 240 908 / 2 = 120 454.
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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 240 908 is about 490.824.
Thus, the square root of 240 908 is not an integer, and therefore 240 908 is not a square number.
The square of a number (here 240 908) is the result of the product of this number (240 908) by itself (i.e., 240 908 × 240 908); the square of 240 908 is sometimes called "raising 240 908 to the power 2", or "240 908 squared".
The square of 240 908 is 58 036 664 464 because 240 908 × 240 908 = 240 9082 = 58 036 664 464.
As a consequence, 240 908 is the square root of 58 036 664 464.
The multiples of 240 908 are all integers evenly divisible by 240 908, that is all numbers such that the remainder of the division by 240 908 is zero. There are infinitely many multiples of 240 908. The smallest multiples of 240 908 are: