It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 558 317 is not a prime number.
For example, 558 317 can be divided by 59: 558 317 / 59 = 9 463.
For 558 317 to be a prime number, it would have been required that 558 317 has only two divisors, i.e., itself and 1.
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558 317 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 558 317 is about 747.206.
Thus, the square root of 558 317 is not an integer, and therefore 558 317 is not a square number.
The square of a number (here 558 317) is the result of the product of this number (558 317) by itself (i.e., 558 317 × 558 317); the square of 558 317 is sometimes called "raising 558 317 to the power 2", or "558 317 squared".
The square of 558 317 is 311 717 872 489 because 558 317 × 558 317 = 558 3172 = 311 717 872 489.
As a consequence, 558 317 is the square root of 311 717 872 489.
The multiples of 558 317 are all integers evenly divisible by 558 317, that is all numbers such that the remainder of the division by 558 317 is zero. There are infinitely many multiples of 558 317. The smallest multiples of 558 317 are: