It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 476 is not a prime number.
For example, 490 476 can be divided by 2: 490 476 / 2 = 245 238.
For 490 476 to be a prime number, it would have been required that 490 476 has only two divisors, i.e., itself and 1.
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490 476 is an even number, because it is evenly divisible by 2: 490 476 / 2 = 245 238.
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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 490 476 is about 700.340.
Thus, the square root of 490 476 is not an integer, and therefore 490 476 is not a square number.
The square of a number (here 490 476) is the result of the product of this number (490 476) by itself (i.e., 490 476 × 490 476); the square of 490 476 is sometimes called "raising 490 476 to the power 2", or "490 476 squared".
The square of 490 476 is 240 566 706 576 because 490 476 × 490 476 = 490 4762 = 240 566 706 576.
As a consequence, 490 476 is the square root of 240 566 706 576.
The multiples of 490 476 are all integers evenly divisible by 490 476, that is all numbers such that the remainder of the division by 490 476 is zero. There are infinitely many multiples of 490 476. The smallest multiples of 490 476 are: