It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 504 628 is not a prime number.
For example, 504 628 can be divided by 2: 504 628 / 2 = 252 314.
For 504 628 to be a prime number, it would have been required that 504 628 has only two divisors, i.e., itself and 1.
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504 628 is an even number, because it is evenly divisible by 2: 504 628 / 2 = 252 314.
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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 504 628 is about 710.372.
Thus, the square root of 504 628 is not an integer, and therefore 504 628 is not a square number.
The square of a number (here 504 628) is the result of the product of this number (504 628) by itself (i.e., 504 628 × 504 628); the square of 504 628 is sometimes called "raising 504 628 to the power 2", or "504 628 squared".
The square of 504 628 is 254 649 418 384 because 504 628 × 504 628 = 504 6282 = 254 649 418 384.
As a consequence, 504 628 is the square root of 254 649 418 384.
The multiples of 504 628 are all integers evenly divisible by 504 628, that is all numbers such that the remainder of the division by 504 628 is zero. There are infinitely many multiples of 504 628. The smallest multiples of 504 628 are: