It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 729 004 is not a prime number.
For example, 729 004 can be divided by 2: 729 004 / 2 = 364 502.
For 729 004 to be a prime number, it would have been required that 729 004 has only two divisors, i.e., itself and 1.
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729 004 is an even number, because it is evenly divisible by 2: 729 004 / 2 = 364 502.
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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 729 004 is about 853.817.
Thus, the square root of 729 004 is not an integer, and therefore 729 004 is not a square number.
The square of a number (here 729 004) is the result of the product of this number (729 004) by itself (i.e., 729 004 × 729 004); the square of 729 004 is sometimes called "raising 729 004 to the power 2", or "729 004 squared".
The square of 729 004 is 531 446 832 016 because 729 004 × 729 004 = 729 0042 = 531 446 832 016.
As a consequence, 729 004 is the square root of 531 446 832 016.
The multiples of 729 004 are all integers evenly divisible by 729 004, that is all numbers such that the remainder of the division by 729 004 is zero. There are infinitely many multiples of 729 004. The smallest multiples of 729 004 are: