It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 797 is not a prime number.
For example, 489 797 can be divided by 7: 489 797 / 7 = 69 971.
For 489 797 to be a prime number, it would have been required that 489 797 has only two divisors, i.e., itself and 1.
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489 797 is an odd number, because it is not evenly divisible by 2.
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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 489 797 is about 699.855.
Thus, the square root of 489 797 is not an integer, and therefore 489 797 is not a square number.
The square of a number (here 489 797) is the result of the product of this number (489 797) by itself (i.e., 489 797 × 489 797); the square of 489 797 is sometimes called "raising 489 797 to the power 2", or "489 797 squared".
The square of 489 797 is 239 901 101 209 because 489 797 × 489 797 = 489 7972 = 239 901 101 209.
As a consequence, 489 797 is the square root of 239 901 101 209.
The multiples of 489 797 are all integers evenly divisible by 489 797, that is all numbers such that the remainder of the division by 489 797 is zero. There are infinitely many multiples of 489 797. The smallest multiples of 489 797 are: