It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 492 938 is not a prime number.
For example, 492 938 can be divided by 2: 492 938 / 2 = 246 469.
For 492 938 to be a prime number, it would have been required that 492 938 has only two divisors, i.e., itself and 1.
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492 938 is an even number, because it is evenly divisible by 2: 492 938 / 2 = 246 469.
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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 492 938 is about 702.095.
Thus, the square root of 492 938 is not an integer, and therefore 492 938 is not a square number.
The square of a number (here 492 938) is the result of the product of this number (492 938) by itself (i.e., 492 938 × 492 938); the square of 492 938 is sometimes called "raising 492 938 to the power 2", or "492 938 squared".
The square of 492 938 is 242 987 871 844 because 492 938 × 492 938 = 492 9382 = 242 987 871 844.
As a consequence, 492 938 is the square root of 242 987 871 844.
The multiples of 492 938 are all integers evenly divisible by 492 938, that is all numbers such that the remainder of the division by 492 938 is zero. There are infinitely many multiples of 492 938. The smallest multiples of 492 938 are: