It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 262 is not a prime number.
For example, 489 262 can be divided by 2: 489 262 / 2 = 244 631.
For 489 262 to be a prime number, it would have been required that 489 262 has only two divisors, i.e., itself and 1.
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489 262 is an even number, because it is evenly divisible by 2: 489 262 / 2 = 244 631.
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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 489 262 is about 699.473.
Thus, the square root of 489 262 is not an integer, and therefore 489 262 is not a square number.
The square of a number (here 489 262) is the result of the product of this number (489 262) by itself (i.e., 489 262 × 489 262); the square of 489 262 is sometimes called "raising 489 262 to the power 2", or "489 262 squared".
The square of 489 262 is 239 377 304 644 because 489 262 × 489 262 = 489 2622 = 239 377 304 644.
As a consequence, 489 262 is the square root of 239 377 304 644.
The multiples of 489 262 are all integers evenly divisible by 489 262, that is all numbers such that the remainder of the division by 489 262 is zero. There are infinitely many multiples of 489 262. The smallest multiples of 489 262 are: