It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 493 308 is not a prime number.
For example, 493 308 can be divided by 2: 493 308 / 2 = 246 654.
For 493 308 to be a prime number, it would have been required that 493 308 has only two divisors, i.e., itself and 1.
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493 308 is an even number, because it is evenly divisible by 2: 493 308 / 2 = 246 654.
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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 493 308 is about 702.359.
Thus, the square root of 493 308 is not an integer, and therefore 493 308 is not a square number.
The square of a number (here 493 308) is the result of the product of this number (493 308) by itself (i.e., 493 308 × 493 308); the square of 493 308 is sometimes called "raising 493 308 to the power 2", or "493 308 squared".
The square of 493 308 is 243 352 782 864 because 493 308 × 493 308 = 493 3082 = 243 352 782 864.
As a consequence, 493 308 is the square root of 243 352 782 864.
The multiples of 493 308 are all integers evenly divisible by 493 308, that is all numbers such that the remainder of the division by 493 308 is zero. There are infinitely many multiples of 493 308. The smallest multiples of 493 308 are: