It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 268 is not a prime number.
For example, 240 268 can be divided by 2: 240 268 / 2 = 120 134.
For 240 268 to be a prime number, it would have been required that 240 268 has only two divisors, i.e., itself and 1.
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240 268 is an even number, because it is evenly divisible by 2: 240 268 / 2 = 120 134.
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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 240 268 is about 490.171.
Thus, the square root of 240 268 is not an integer, and therefore 240 268 is not a square number.
The square of a number (here 240 268) is the result of the product of this number (240 268) by itself (i.e., 240 268 × 240 268); the square of 240 268 is sometimes called "raising 240 268 to the power 2", or "240 268 squared".
The square of 240 268 is 57 728 711 824 because 240 268 × 240 268 = 240 2682 = 57 728 711 824.
As a consequence, 240 268 is the square root of 57 728 711 824.
The multiples of 240 268 are all integers evenly divisible by 240 268, that is all numbers such that the remainder of the division by 240 268 is zero. There are infinitely many multiples of 240 268. The smallest multiples of 240 268 are: