It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 343 012 is not a prime number.
For example, 343 012 can be divided by 2: 343 012 / 2 = 171 506.
For 343 012 to be a prime number, it would have been required that 343 012 has only two divisors, i.e., itself and 1.
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343 012 is an even number, because it is evenly divisible by 2: 343 012 / 2 = 171 506.
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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 343 012 is about 585.672.
Thus, the square root of 343 012 is not an integer, and therefore 343 012 is not a square number.
The square of a number (here 343 012) is the result of the product of this number (343 012) by itself (i.e., 343 012 × 343 012); the square of 343 012 is sometimes called "raising 343 012 to the power 2", or "343 012 squared".
The square of 343 012 is 117 657 232 144 because 343 012 × 343 012 = 343 0122 = 117 657 232 144.
As a consequence, 343 012 is the square root of 117 657 232 144.
The multiples of 343 012 are all integers evenly divisible by 343 012, that is all numbers such that the remainder of the division by 343 012 is zero. There are infinitely many multiples of 343 012. The smallest multiples of 343 012 are: