It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 729 is not a prime number.
For example, 120 729 can be divided by 3: 120 729 / 3 = 40 243.
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For 120 729 to be a prime number, it would have been required that 120 729 has only two divisors, i.e., itself and 1.
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120 729 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 120 729 is about 347.461.
Thus, the square root of 120 729 is not an integer, and therefore 120 729 is not a square number.
The square of a number (here 120 729) is the result of the product of this number (120 729) by itself (i.e., 120 729 × 120 729); the square of 120 729 is sometimes called "raising 120 729 to the power 2", or "120 729 squared".
The square of 120 729 is 14 575 491 441 because 120 729 × 120 729 = 120 7292 = 14 575 491 441.
As a consequence, 120 729 is the square root of 14 575 491 441.
The multiples of 120 729 are all integers evenly divisible by 120 729, that is all numbers such that the remainder of the division by 120 729 is zero. There are infinitely many multiples of 120 729. The smallest multiples of 120 729 are: