It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 729 264 is not a prime number.
For example, 729 264 can be divided by 2: 729 264 / 2 = 364 632.
For 729 264 to be a prime number, it would have been required that 729 264 has only two divisors, i.e., itself and 1.
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729 264 is an even number, because it is evenly divisible by 2: 729 264 / 2 = 364 632.
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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 729 264 is about 853.970.
Thus, the square root of 729 264 is not an integer, and therefore 729 264 is not a square number.
The square of a number (here 729 264) is the result of the product of this number (729 264) by itself (i.e., 729 264 × 729 264); the square of 729 264 is sometimes called "raising 729 264 to the power 2", or "729 264 squared".
The square of 729 264 is 531 825 981 696 because 729 264 × 729 264 = 729 2642 = 531 825 981 696.
As a consequence, 729 264 is the square root of 531 825 981 696.
The multiples of 729 264 are all integers evenly divisible by 729 264, that is all numbers such that the remainder of the division by 729 264 is zero. There are infinitely many multiples of 729 264. The smallest multiples of 729 264 are: