It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 048 is not a prime number.
For example, 489 048 can be divided by 2: 489 048 / 2 = 244 524.
For 489 048 to be a prime number, it would have been required that 489 048 has only two divisors, i.e., itself and 1.
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489 048 is an even number, because it is evenly divisible by 2: 489 048 / 2 = 244 524.
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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 489 048 is about 699.320.
Thus, the square root of 489 048 is not an integer, and therefore 489 048 is not a square number.
The square of a number (here 489 048) is the result of the product of this number (489 048) by itself (i.e., 489 048 × 489 048); the square of 489 048 is sometimes called "raising 489 048 to the power 2", or "489 048 squared".
The square of 489 048 is 239 167 946 304 because 489 048 × 489 048 = 489 0482 = 239 167 946 304.
As a consequence, 489 048 is the square root of 239 167 946 304.
The multiples of 489 048 are all integers evenly divisible by 489 048, that is all numbers such that the remainder of the division by 489 048 is zero. There are infinitely many multiples of 489 048. The smallest multiples of 489 048 are: