It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 338 342 is not a prime number.
For example, 338 342 can be divided by 2: 338 342 / 2 = 169 171.
For 338 342 to be a prime number, it would have been required that 338 342 has only two divisors, i.e., itself and 1.
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338 342 is an even number, because it is evenly divisible by 2: 338 342 / 2 = 169 171.
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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 338 342 is about 581.672.
Thus, the square root of 338 342 is not an integer, and therefore 338 342 is not a square number.
The square of a number (here 338 342) is the result of the product of this number (338 342) by itself (i.e., 338 342 × 338 342); the square of 338 342 is sometimes called "raising 338 342 to the power 2", or "338 342 squared".
The square of 338 342 is 114 475 308 964 because 338 342 × 338 342 = 338 3422 = 114 475 308 964.
As a consequence, 338 342 is the square root of 114 475 308 964.
The multiples of 338 342 are all integers evenly divisible by 338 342, that is all numbers such that the remainder of the division by 338 342 is zero. There are infinitely many multiples of 338 342. The smallest multiples of 338 342 are: