It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 729 738 is not a prime number.
For example, 729 738 can be divided by 2: 729 738 / 2 = 364 869.
For 729 738 to be a prime number, it would have been required that 729 738 has only two divisors, i.e., itself and 1.
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729 738 is an even number, because it is evenly divisible by 2: 729 738 / 2 = 364 869.
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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 729 738 is about 854.247.
Thus, the square root of 729 738 is not an integer, and therefore 729 738 is not a square number.
The square of a number (here 729 738) is the result of the product of this number (729 738) by itself (i.e., 729 738 × 729 738); the square of 729 738 is sometimes called "raising 729 738 to the power 2", or "729 738 squared".
The square of 729 738 is 532 517 548 644 because 729 738 × 729 738 = 729 7382 = 532 517 548 644.
As a consequence, 729 738 is the square root of 532 517 548 644.
The multiples of 729 738 are all integers evenly divisible by 729 738, that is all numbers such that the remainder of the division by 729 738 is zero. There are infinitely many multiples of 729 738. The smallest multiples of 729 738 are: