It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 324 988 is not a prime number.
For example, 324 988 can be divided by 2: 324 988 / 2 = 162 494.
For 324 988 to be a prime number, it would have been required that 324 988 has only two divisors, i.e., itself and 1.
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324 988 is an even number, because it is evenly divisible by 2: 324 988 / 2 = 162 494.
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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 324 988 is about 570.077.
Thus, the square root of 324 988 is not an integer, and therefore 324 988 is not a square number.
The square of a number (here 324 988) is the result of the product of this number (324 988) by itself (i.e., 324 988 × 324 988); the square of 324 988 is sometimes called "raising 324 988 to the power 2", or "324 988 squared".
The square of 324 988 is 105 617 200 144 because 324 988 × 324 988 = 324 9882 = 105 617 200 144.
As a consequence, 324 988 is the square root of 105 617 200 144.
The multiples of 324 988 are all integers evenly divisible by 324 988, that is all numbers such that the remainder of the division by 324 988 is zero. There are infinitely many multiples of 324 988. The smallest multiples of 324 988 are: