It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 722 704 is not a prime number.
For example, 722 704 can be divided by 2: 722 704 / 2 = 361 352.
For 722 704 to be a prime number, it would have been required that 722 704 has only two divisors, i.e., itself and 1.
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722 704 is an even number, because it is evenly divisible by 2: 722 704 / 2 = 361 352.
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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 722 704 is about 850.120.
Thus, the square root of 722 704 is not an integer, and therefore 722 704 is not a square number.
The square of a number (here 722 704) is the result of the product of this number (722 704) by itself (i.e., 722 704 × 722 704); the square of 722 704 is sometimes called "raising 722 704 to the power 2", or "722 704 squared".
The square of 722 704 is 522 301 071 616 because 722 704 × 722 704 = 722 7042 = 522 301 071 616.
As a consequence, 722 704 is the square root of 522 301 071 616.
The multiples of 722 704 are all integers evenly divisible by 722 704, that is all numbers such that the remainder of the division by 722 704 is zero. There are infinitely many multiples of 722 704. The smallest multiples of 722 704 are: