It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 495 492 is not a prime number.
For example, 495 492 can be divided by 2: 495 492 / 2 = 247 746.
For 495 492 to be a prime number, it would have been required that 495 492 has only two divisors, i.e., itself and 1.
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495 492 is an even number, because it is evenly divisible by 2: 495 492 / 2 = 247 746.
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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 495 492 is about 703.912.
Thus, the square root of 495 492 is not an integer, and therefore 495 492 is not a square number.
The square of a number (here 495 492) is the result of the product of this number (495 492) by itself (i.e., 495 492 × 495 492); the square of 495 492 is sometimes called "raising 495 492 to the power 2", or "495 492 squared".
The square of 495 492 is 245 512 322 064 because 495 492 × 495 492 = 495 4922 = 245 512 322 064.
As a consequence, 495 492 is the square root of 245 512 322 064.
The multiples of 495 492 are all integers evenly divisible by 495 492, that is all numbers such that the remainder of the division by 495 492 is zero. There are infinitely many multiples of 495 492. The smallest multiples of 495 492 are: