It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 722 734 is not a prime number.
For example, 722 734 can be divided by 2: 722 734 / 2 = 361 367.
For 722 734 to be a prime number, it would have been required that 722 734 has only two divisors, i.e., itself and 1.
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722 734 is an even number, because it is evenly divisible by 2: 722 734 / 2 = 361 367.
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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 722 734 is about 850.138.
Thus, the square root of 722 734 is not an integer, and therefore 722 734 is not a square number.
The square of a number (here 722 734) is the result of the product of this number (722 734) by itself (i.e., 722 734 × 722 734); the square of 722 734 is sometimes called "raising 722 734 to the power 2", or "722 734 squared".
The square of 722 734 is 522 344 434 756 because 722 734 × 722 734 = 722 7342 = 522 344 434 756.
As a consequence, 722 734 is the square root of 522 344 434 756.
The multiples of 722 734 are all integers evenly divisible by 722 734, that is all numbers such that the remainder of the division by 722 734 is zero. There are infinitely many multiples of 722 734. The smallest multiples of 722 734 are: