It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 708 992 is not a prime number.
For example, 708 992 can be divided by 2: 708 992 / 2 = 354 496.
For 708 992 to be a prime number, it would have been required that 708 992 has only two divisors, i.e., itself and 1.
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708 992 is an even number, because it is evenly divisible by 2: 708 992 / 2 = 354 496.
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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 708 992 is about 842.017.
Thus, the square root of 708 992 is not an integer, and therefore 708 992 is not a square number.
The square of a number (here 708 992) is the result of the product of this number (708 992) by itself (i.e., 708 992 × 708 992); the square of 708 992 is sometimes called "raising 708 992 to the power 2", or "708 992 squared".
The square of 708 992 is 502 669 656 064 because 708 992 × 708 992 = 708 9922 = 502 669 656 064.
As a consequence, 708 992 is the square root of 502 669 656 064.
The multiples of 708 992 are all integers evenly divisible by 708 992, that is all numbers such that the remainder of the division by 708 992 is zero. There are infinitely many multiples of 708 992. The smallest multiples of 708 992 are: