It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 346 018 is not a prime number.
For example, 346 018 can be divided by 2: 346 018 / 2 = 173 009.
For 346 018 to be a prime number, it would have been required that 346 018 has only two divisors, i.e., itself and 1.
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346 018 is an even number, because it is evenly divisible by 2: 346 018 / 2 = 173 009.
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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 346 018 is about 588.233.
Thus, the square root of 346 018 is not an integer, and therefore 346 018 is not a square number.
The square of a number (here 346 018) is the result of the product of this number (346 018) by itself (i.e., 346 018 × 346 018); the square of 346 018 is sometimes called "raising 346 018 to the power 2", or "346 018 squared".
The square of 346 018 is 119 728 456 324 because 346 018 × 346 018 = 346 0182 = 119 728 456 324.
As a consequence, 346 018 is the square root of 119 728 456 324.
The multiples of 346 018 are all integers evenly divisible by 346 018, that is all numbers such that the remainder of the division by 346 018 is zero. There are infinitely many multiples of 346 018. The smallest multiples of 346 018 are: