It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 908 is not a prime number.
For example, 490 908 can be divided by 2: 490 908 / 2 = 245 454.
For 490 908 to be a prime number, it would have been required that 490 908 has only two divisors, i.e., itself and 1.
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490 908 is an even number, because it is evenly divisible by 2: 490 908 / 2 = 245 454.
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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 490 908 is about 700.648.
Thus, the square root of 490 908 is not an integer, and therefore 490 908 is not a square number.
The square of a number (here 490 908) is the result of the product of this number (490 908) by itself (i.e., 490 908 × 490 908); the square of 490 908 is sometimes called "raising 490 908 to the power 2", or "490 908 squared".
The square of 490 908 is 240 990 664 464 because 490 908 × 490 908 = 490 9082 = 240 990 664 464.
As a consequence, 490 908 is the square root of 240 990 664 464.
The multiples of 490 908 are all integers evenly divisible by 490 908, that is all numbers such that the remainder of the division by 490 908 is zero. There are infinitely many multiples of 490 908. The smallest multiples of 490 908 are: