It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 498 342 is not a prime number.
For example, 498 342 can be divided by 2: 498 342 / 2 = 249 171.
For 498 342 to be a prime number, it would have been required that 498 342 has only two divisors, i.e., itself and 1.
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498 342 is an even number, because it is evenly divisible by 2: 498 342 / 2 = 249 171.
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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 498 342 is about 705.933.
Thus, the square root of 498 342 is not an integer, and therefore 498 342 is not a square number.
The square of a number (here 498 342) is the result of the product of this number (498 342) by itself (i.e., 498 342 × 498 342); the square of 498 342 is sometimes called "raising 498 342 to the power 2", or "498 342 squared".
The square of 498 342 is 248 344 748 964 because 498 342 × 498 342 = 498 3422 = 248 344 748 964.
As a consequence, 498 342 is the square root of 248 344 748 964.
The multiples of 498 342 are all integers evenly divisible by 498 342, that is all numbers such that the remainder of the division by 498 342 is zero. There are infinitely many multiples of 498 342. The smallest multiples of 498 342 are: