It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 248 442 is not a prime number.
For example, 248 442 can be divided by 2: 248 442 / 2 = 124 221.
For 248 442 to be a prime number, it would have been required that 248 442 has only two divisors, i.e., itself and 1.
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248 442 is an even number, because it is evenly divisible by 2: 248 442 / 2 = 124 221.
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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 248 442 is about 498.440.
Thus, the square root of 248 442 is not an integer, and therefore 248 442 is not a square number.
The square of a number (here 248 442) is the result of the product of this number (248 442) by itself (i.e., 248 442 × 248 442); the square of 248 442 is sometimes called "raising 248 442 to the power 2", or "248 442 squared".
The square of 248 442 is 61 723 427 364 because 248 442 × 248 442 = 248 4422 = 61 723 427 364.
As a consequence, 248 442 is the square root of 61 723 427 364.
The multiples of 248 442 are all integers evenly divisible by 248 442, that is all numbers such that the remainder of the division by 248 442 is zero. There are infinitely many multiples of 248 442. The smallest multiples of 248 442 are: