It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 230 242 is not a prime number.
For example, 230 242 can be divided by 2: 230 242 / 2 = 115 121.
For 230 242 to be a prime number, it would have been required that 230 242 has only two divisors, i.e., itself and 1.
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230 242 is an even number, because it is evenly divisible by 2: 230 242 / 2 = 115 121.
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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 230 242 is about 479.835.
Thus, the square root of 230 242 is not an integer, and therefore 230 242 is not a square number.
The square of a number (here 230 242) is the result of the product of this number (230 242) by itself (i.e., 230 242 × 230 242); the square of 230 242 is sometimes called "raising 230 242 to the power 2", or "230 242 squared".
The square of 230 242 is 53 011 378 564 because 230 242 × 230 242 = 230 2422 = 53 011 378 564.
As a consequence, 230 242 is the square root of 53 011 378 564.
The multiples of 230 242 are all integers evenly divisible by 230 242, that is all numbers such that the remainder of the division by 230 242 is zero. There are infinitely many multiples of 230 242. The smallest multiples of 230 242 are: