It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 492 516 is not a prime number.
For example, 492 516 can be divided by 2: 492 516 / 2 = 246 258.
For 492 516 to be a prime number, it would have been required that 492 516 has only two divisors, i.e., itself and 1.
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492 516 is an even number, because it is evenly divisible by 2: 492 516 / 2 = 246 258.
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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 492 516 is about 701.795.
Thus, the square root of 492 516 is not an integer, and therefore 492 516 is not a square number.
The square of a number (here 492 516) is the result of the product of this number (492 516) by itself (i.e., 492 516 × 492 516); the square of 492 516 is sometimes called "raising 492 516 to the power 2", or "492 516 squared".
The square of 492 516 is 242 572 010 256 because 492 516 × 492 516 = 492 5162 = 242 572 010 256.
As a consequence, 492 516 is the square root of 242 572 010 256.
The multiples of 492 516 are all integers evenly divisible by 492 516, that is all numbers such that the remainder of the division by 492 516 is zero. There are infinitely many multiples of 492 516. The smallest multiples of 492 516 are: