It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 316 is not a prime number.
For example, 240 316 can be divided by 2: 240 316 / 2 = 120 158.
For 240 316 to be a prime number, it would have been required that 240 316 has only two divisors, i.e., itself and 1.
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240 316 is an even number, because it is evenly divisible by 2: 240 316 / 2 = 120 158.
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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 240 316 is about 490.220.
Thus, the square root of 240 316 is not an integer, and therefore 240 316 is not a square number.
The square of a number (here 240 316) is the result of the product of this number (240 316) by itself (i.e., 240 316 × 240 316); the square of 240 316 is sometimes called "raising 240 316 to the power 2", or "240 316 squared".
The square of 240 316 is 57 751 779 856 because 240 316 × 240 316 = 240 3162 = 57 751 779 856.
As a consequence, 240 316 is the square root of 57 751 779 856.
The multiples of 240 316 are all integers evenly divisible by 240 316, that is all numbers such that the remainder of the division by 240 316 is zero. There are infinitely many multiples of 240 316. The smallest multiples of 240 316 are: