It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 729 is not a prime number.
For example, 742 729 can be divided by 13: 742 729 / 13 = 57 133.
For 742 729 to be a prime number, it would have been required that 742 729 has only two divisors, i.e., itself and 1.
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742 729 is an odd number, because it is not evenly divisible by 2.
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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 742 729 is about 861.817.
Thus, the square root of 742 729 is not an integer, and therefore 742 729 is not a square number.
The square of a number (here 742 729) is the result of the product of this number (742 729) by itself (i.e., 742 729 × 742 729); the square of 742 729 is sometimes called "raising 742 729 to the power 2", or "742 729 squared".
The square of 742 729 is 551 646 367 441 because 742 729 × 742 729 = 742 7292 = 551 646 367 441.
As a consequence, 742 729 is the square root of 551 646 367 441.
The multiples of 742 729 are all integers evenly divisible by 742 729, that is all numbers such that the remainder of the division by 742 729 is zero. There are infinitely many multiples of 742 729. The smallest multiples of 742 729 are: