It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 494 388 is not a prime number.
For example, 494 388 can be divided by 2: 494 388 / 2 = 247 194.
For 494 388 to be a prime number, it would have been required that 494 388 has only two divisors, i.e., itself and 1.
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494 388 is an even number, because it is evenly divisible by 2: 494 388 / 2 = 247 194.
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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 494 388 is about 703.127.
Thus, the square root of 494 388 is not an integer, and therefore 494 388 is not a square number.
The square of a number (here 494 388) is the result of the product of this number (494 388) by itself (i.e., 494 388 × 494 388); the square of 494 388 is sometimes called "raising 494 388 to the power 2", or "494 388 squared".
The square of 494 388 is 244 419 494 544 because 494 388 × 494 388 = 494 3882 = 244 419 494 544.
As a consequence, 494 388 is the square root of 244 419 494 544.
The multiples of 494 388 are all integers evenly divisible by 494 388, that is all numbers such that the remainder of the division by 494 388 is zero. There are infinitely many multiples of 494 388. The smallest multiples of 494 388 are: