It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 504 342 is not a prime number.
For example, 504 342 can be divided by 2: 504 342 / 2 = 252 171.
For 504 342 to be a prime number, it would have been required that 504 342 has only two divisors, i.e., itself and 1.
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504 342 is an even number, because it is evenly divisible by 2: 504 342 / 2 = 252 171.
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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 504 342 is about 710.170.
Thus, the square root of 504 342 is not an integer, and therefore 504 342 is not a square number.
The square of a number (here 504 342) is the result of the product of this number (504 342) by itself (i.e., 504 342 × 504 342); the square of 504 342 is sometimes called "raising 504 342 to the power 2", or "504 342 squared".
The square of 504 342 is 254 360 852 964 because 504 342 × 504 342 = 504 3422 = 254 360 852 964.
As a consequence, 504 342 is the square root of 254 360 852 964.
The multiples of 504 342 are all integers evenly divisible by 504 342, that is all numbers such that the remainder of the division by 504 342 is zero. There are infinitely many multiples of 504 342. The smallest multiples of 504 342 are: