It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 342 708 is not a prime number.
For example, 342 708 can be divided by 2: 342 708 / 2 = 171 354.
For 342 708 to be a prime number, it would have been required that 342 708 has only two divisors, i.e., itself and 1.
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342 708 is an even number, because it is evenly divisible by 2: 342 708 / 2 = 171 354.
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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 342 708 is about 585.413.
Thus, the square root of 342 708 is not an integer, and therefore 342 708 is not a square number.
The square of a number (here 342 708) is the result of the product of this number (342 708) by itself (i.e., 342 708 × 342 708); the square of 342 708 is sometimes called "raising 342 708 to the power 2", or "342 708 squared".
The square of 342 708 is 117 448 773 264 because 342 708 × 342 708 = 342 7082 = 117 448 773 264.
As a consequence, 342 708 is the square root of 117 448 773 264.
The multiples of 342 708 are all integers evenly divisible by 342 708, that is all numbers such that the remainder of the division by 342 708 is zero. There are infinitely many multiples of 342 708. The smallest multiples of 342 708 are: