It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 331 016 is not a prime number.
For example, 331 016 can be divided by 2: 331 016 / 2 = 165 508.
For 331 016 to be a prime number, it would have been required that 331 016 has only two divisors, i.e., itself and 1.
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331 016 is an even number, because it is evenly divisible by 2: 331 016 / 2 = 165 508.
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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 331 016 is about 575.340.
Thus, the square root of 331 016 is not an integer, and therefore 331 016 is not a square number.
The square of a number (here 331 016) is the result of the product of this number (331 016) by itself (i.e., 331 016 × 331 016); the square of 331 016 is sometimes called "raising 331 016 to the power 2", or "331 016 squared".
The square of 331 016 is 109 571 592 256 because 331 016 × 331 016 = 331 0162 = 109 571 592 256.
As a consequence, 331 016 is the square root of 109 571 592 256.
The multiples of 331 016 are all integers evenly divisible by 331 016, that is all numbers such that the remainder of the division by 331 016 is zero. There are infinitely many multiples of 331 016. The smallest multiples of 331 016 are: