It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 493 988 is not a prime number.
For example, 493 988 can be divided by 2: 493 988 / 2 = 246 994.
For 493 988 to be a prime number, it would have been required that 493 988 has only two divisors, i.e., itself and 1.
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493 988 is an even number, because it is evenly divisible by 2: 493 988 / 2 = 246 994.
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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 493 988 is about 702.843.
Thus, the square root of 493 988 is not an integer, and therefore 493 988 is not a square number.
The square of a number (here 493 988) is the result of the product of this number (493 988) by itself (i.e., 493 988 × 493 988); the square of 493 988 is sometimes called "raising 493 988 to the power 2", or "493 988 squared".
The square of 493 988 is 244 024 144 144 because 493 988 × 493 988 = 493 9882 = 244 024 144 144.
As a consequence, 493 988 is the square root of 244 024 144 144.
The multiples of 493 988 are all integers evenly divisible by 493 988, that is all numbers such that the remainder of the division by 493 988 is zero. There are infinitely many multiples of 493 988. The smallest multiples of 493 988 are: