It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 088 is not a prime number.
For example, 489 088 can be divided by 2: 489 088 / 2 = 244 544.
For 489 088 to be a prime number, it would have been required that 489 088 has only two divisors, i.e., itself and 1.
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489 088 is an even number, because it is evenly divisible by 2: 489 088 / 2 = 244 544.
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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 489 088 is about 699.348.
Thus, the square root of 489 088 is not an integer, and therefore 489 088 is not a square number.
The square of a number (here 489 088) is the result of the product of this number (489 088) by itself (i.e., 489 088 × 489 088); the square of 489 088 is sometimes called "raising 489 088 to the power 2", or "489 088 squared".
The square of 489 088 is 239 207 071 744 because 489 088 × 489 088 = 489 0882 = 239 207 071 744.
As a consequence, 489 088 is the square root of 239 207 071 744.
The multiples of 489 088 are all integers evenly divisible by 489 088, that is all numbers such that the remainder of the division by 489 088 is zero. There are infinitely many multiples of 489 088. The smallest multiples of 489 088 are: