It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 477 is not a prime number.
For example, 489 477 can be divided by 3: 489 477 / 3 = 163 159.
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For 489 477 to be a prime number, it would have been required that 489 477 has only two divisors, i.e., itself and 1.
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489 477 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 489 477 is about 699.626.
Thus, the square root of 489 477 is not an integer, and therefore 489 477 is not a square number.
The square of a number (here 489 477) is the result of the product of this number (489 477) by itself (i.e., 489 477 × 489 477); the square of 489 477 is sometimes called "raising 489 477 to the power 2", or "489 477 squared".
The square of 489 477 is 239 587 733 529 because 489 477 × 489 477 = 489 4772 = 239 587 733 529.
As a consequence, 489 477 is the square root of 239 587 733 529.
The multiples of 489 477 are all integers evenly divisible by 489 477, that is all numbers such that the remainder of the division by 489 477 is zero. There are infinitely many multiples of 489 477. The smallest multiples of 489 477 are: