It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 489 326 is not a prime number.
For example, 489 489 326 can be divided by 2: 489 489 326 / 2 = 244 744 663.
For 489 489 326 to be a prime number, it would have been required that 489 489 326 has only two divisors, i.e., itself and 1.
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489 489 326 is an even number, because it is evenly divisible by 2: 489 489 326 / 2 = 244 744 663.
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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 489 489 326 is about 22 124.406.
Thus, the square root of 489 489 326 is not an integer, and therefore 489 489 326 is not a square number.
The square of a number (here 489 489 326) is the result of the product of this number (489 489 326) by itself (i.e., 489 489 326 × 489 489 326); the square of 489 489 326 is sometimes called "raising 489 489 326 to the power 2", or "489 489 326 squared".
The square of 489 489 326 is 239 599 800 267 934 272 because 489 489 326 × 489 489 326 = 489 489 3262 = 239 599 800 267 934 272.
As a consequence, 489 489 326 is the square root of 239 599 800 267 934 272.
489 489 326 is a number with 9 digits.
The multiples of 489 489 326 are all integers evenly divisible by 489 489 326, that is all numbers such that the remainder of the division by 489 489 326 is zero. There are infinitely many multiples of 489 489 326. The smallest multiples of 489 489 326 are: