It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 340 616 is not a prime number.
For example, 340 616 can be divided by 2: 340 616 / 2 = 170 308.
For 340 616 to be a prime number, it would have been required that 340 616 has only two divisors, i.e., itself and 1.
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340 616 is an even number, because it is evenly divisible by 2: 340 616 / 2 = 170 308.
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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 340 616 is about 583.623.
Thus, the square root of 340 616 is not an integer, and therefore 340 616 is not a square number.
The square of a number (here 340 616) is the result of the product of this number (340 616) by itself (i.e., 340 616 × 340 616); the square of 340 616 is sometimes called "raising 340 616 to the power 2", or "340 616 squared".
The square of 340 616 is 116 019 259 456 because 340 616 × 340 616 = 340 6162 = 116 019 259 456.
As a consequence, 340 616 is the square root of 116 019 259 456.
The multiples of 340 616 are all integers evenly divisible by 340 616, that is all numbers such that the remainder of the division by 340 616 is zero. There are infinitely many multiples of 340 616. The smallest multiples of 340 616 are: