It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 488 458 is not a prime number.
For example, 488 458 can be divided by 2: 488 458 / 2 = 244 229.
For 488 458 to be a prime number, it would have been required that 488 458 has only two divisors, i.e., itself and 1.
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488 458 is an even number, because it is evenly divisible by 2: 488 458 / 2 = 244 229.
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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 488 458 is about 698.898.
Thus, the square root of 488 458 is not an integer, and therefore 488 458 is not a square number.
The square of a number (here 488 458) is the result of the product of this number (488 458) by itself (i.e., 488 458 × 488 458); the square of 488 458 is sometimes called "raising 488 458 to the power 2", or "488 458 squared".
The square of 488 458 is 238 591 217 764 because 488 458 × 488 458 = 488 4582 = 238 591 217 764.
As a consequence, 488 458 is the square root of 238 591 217 764.
The multiples of 488 458 are all integers evenly divisible by 488 458, that is all numbers such that the remainder of the division by 488 458 is zero. There are infinitely many multiples of 488 458. The smallest multiples of 488 458 are: