It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 342 834 is not a prime number.
For example, 342 834 can be divided by 2: 342 834 / 2 = 171 417.
For 342 834 to be a prime number, it would have been required that 342 834 has only two divisors, i.e., itself and 1.
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342 834 is an even number, because it is evenly divisible by 2: 342 834 / 2 = 171 417.
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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 342 834 is about 585.520.
Thus, the square root of 342 834 is not an integer, and therefore 342 834 is not a square number.
The square of a number (here 342 834) is the result of the product of this number (342 834) by itself (i.e., 342 834 × 342 834); the square of 342 834 is sometimes called "raising 342 834 to the power 2", or "342 834 squared".
The square of 342 834 is 117 535 151 556 because 342 834 × 342 834 = 342 8342 = 117 535 151 556.
As a consequence, 342 834 is the square root of 117 535 151 556.
The multiples of 342 834 are all integers evenly divisible by 342 834, that is all numbers such that the remainder of the division by 342 834 is zero. There are infinitely many multiples of 342 834. The smallest multiples of 342 834 are: