It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 494 958 is not a prime number.
For example, 494 958 can be divided by 2: 494 958 / 2 = 247 479.
For 494 958 to be a prime number, it would have been required that 494 958 has only two divisors, i.e., itself and 1.
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494 958 is an even number, because it is evenly divisible by 2: 494 958 / 2 = 247 479.
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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 494 958 is about 703.533.
Thus, the square root of 494 958 is not an integer, and therefore 494 958 is not a square number.
The square of a number (here 494 958) is the result of the product of this number (494 958) by itself (i.e., 494 958 × 494 958); the square of 494 958 is sometimes called "raising 494 958 to the power 2", or "494 958 squared".
The square of 494 958 is 244 983 421 764 because 494 958 × 494 958 = 494 9582 = 244 983 421 764.
As a consequence, 494 958 is the square root of 244 983 421 764.
The multiples of 494 958 are all integers evenly divisible by 494 958, that is all numbers such that the remainder of the division by 494 958 is zero. There are infinitely many multiples of 494 958. The smallest multiples of 494 958 are: