It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 108 is not a prime number.
For example, 489 108 can be divided by 2: 489 108 / 2 = 244 554.
For 489 108 to be a prime number, it would have been required that 489 108 has only two divisors, i.e., itself and 1.
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489 108 is an even number, because it is evenly divisible by 2: 489 108 / 2 = 244 554.
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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 489 108 is about 699.363.
Thus, the square root of 489 108 is not an integer, and therefore 489 108 is not a square number.
The square of a number (here 489 108) is the result of the product of this number (489 108) by itself (i.e., 489 108 × 489 108); the square of 489 108 is sometimes called "raising 489 108 to the power 2", or "489 108 squared".
The square of 489 108 is 239 226 635 664 because 489 108 × 489 108 = 489 1082 = 239 226 635 664.
As a consequence, 489 108 is the square root of 239 226 635 664.
The multiples of 489 108 are all integers evenly divisible by 489 108, that is all numbers such that the remainder of the division by 489 108 is zero. There are infinitely many multiples of 489 108. The smallest multiples of 489 108 are: