It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 492 408 is not a prime number.
For example, 492 408 can be divided by 2: 492 408 / 2 = 246 204.
For 492 408 to be a prime number, it would have been required that 492 408 has only two divisors, i.e., itself and 1.
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492 408 is an even number, because it is evenly divisible by 2: 492 408 / 2 = 246 204.
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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 492 408 is about 701.718.
Thus, the square root of 492 408 is not an integer, and therefore 492 408 is not a square number.
The square of a number (here 492 408) is the result of the product of this number (492 408) by itself (i.e., 492 408 × 492 408); the square of 492 408 is sometimes called "raising 492 408 to the power 2", or "492 408 squared".
The square of 492 408 is 242 465 638 464 because 492 408 × 492 408 = 492 4082 = 242 465 638 464.
As a consequence, 492 408 is the square root of 242 465 638 464.
The multiples of 492 408 are all integers evenly divisible by 492 408, that is all numbers such that the remainder of the division by 492 408 is zero. There are infinitely many multiples of 492 408. The smallest multiples of 492 408 are: