It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 336 998 is not a prime number.
For example, 336 998 can be divided by 2: 336 998 / 2 = 168 499.
For 336 998 to be a prime number, it would have been required that 336 998 has only two divisors, i.e., itself and 1.
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336 998 is an even number, because it is evenly divisible by 2: 336 998 / 2 = 168 499.
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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 336 998 is about 580.515.
Thus, the square root of 336 998 is not an integer, and therefore 336 998 is not a square number.
The square of a number (here 336 998) is the result of the product of this number (336 998) by itself (i.e., 336 998 × 336 998); the square of 336 998 is sometimes called "raising 336 998 to the power 2", or "336 998 squared".
The square of 336 998 is 113 567 652 004 because 336 998 × 336 998 = 336 9982 = 113 567 652 004.
As a consequence, 336 998 is the square root of 113 567 652 004.
The multiples of 336 998 are all integers evenly divisible by 336 998, that is all numbers such that the remainder of the division by 336 998 is zero. There are infinitely many multiples of 336 998. The smallest multiples of 336 998 are: