It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 736 728 is not a prime number.
For example, 736 728 can be divided by 2: 736 728 / 2 = 368 364.
For 736 728 to be a prime number, it would have been required that 736 728 has only two divisors, i.e., itself and 1.
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736 728 is an even number, because it is evenly divisible by 2: 736 728 / 2 = 368 364.
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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 736 728 is about 858.329.
Thus, the square root of 736 728 is not an integer, and therefore 736 728 is not a square number.
The square of a number (here 736 728) is the result of the product of this number (736 728) by itself (i.e., 736 728 × 736 728); the square of 736 728 is sometimes called "raising 736 728 to the power 2", or "736 728 squared".
The square of 736 728 is 542 768 145 984 because 736 728 × 736 728 = 736 7282 = 542 768 145 984.
As a consequence, 736 728 is the square root of 542 768 145 984.
The multiples of 736 728 are all integers evenly divisible by 736 728, that is all numbers such that the remainder of the division by 736 728 is zero. There are infinitely many multiples of 736 728. The smallest multiples of 736 728 are: