It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 55 729 is not a prime number.
For example, 55 729 can be divided by 23: 55 729 / 23 = 2 423.
For 55 729 to be a prime number, it would have been required that 55 729 has only two divisors, i.e., itself and 1.
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55 729 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 55 729 is about 236.070.
Thus, the square root of 55 729 is not an integer, and therefore 55 729 is not a square number.
The square of a number (here 55 729) is the result of the product of this number (55 729) by itself (i.e., 55 729 × 55 729); the square of 55 729 is sometimes called "raising 55 729 to the power 2", or "55 729 squared".
The square of 55 729 is 3 105 721 441 because 55 729 × 55 729 = 55 7292 = 3 105 721 441.
As a consequence, 55 729 is the square root of 3 105 721 441.
The multiples of 55 729 are all integers evenly divisible by 55 729, that is all numbers such that the remainder of the division by 55 729 is zero. There are infinitely many multiples of 55 729. The smallest multiples of 55 729 are: