It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 118 358 is not a prime number.
For example, 118 358 can be divided by 2: 118 358 / 2 = 59 179.
For 118 358 to be a prime number, it would have been required that 118 358 has only two divisors, i.e., itself and 1.
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118 358 is an even number, because it is evenly divisible by 2: 118 358 / 2 = 59 179.
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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 118 358 is about 344.032.
Thus, the square root of 118 358 is not an integer, and therefore 118 358 is not a square number.
The square of a number (here 118 358) is the result of the product of this number (118 358) by itself (i.e., 118 358 × 118 358); the square of 118 358 is sometimes called "raising 118 358 to the power 2", or "118 358 squared".
The square of 118 358 is 14 008 616 164 because 118 358 × 118 358 = 118 3582 = 14 008 616 164.
As a consequence, 118 358 is the square root of 14 008 616 164.
The multiples of 118 358 are all integers evenly divisible by 118 358, that is all numbers such that the remainder of the division by 118 358 is zero. There are infinitely many multiples of 118 358. The smallest multiples of 118 358 are: