It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 488 818 is not a prime number.
For example, 488 818 can be divided by 2: 488 818 / 2 = 244 409.
For 488 818 to be a prime number, it would have been required that 488 818 has only two divisors, i.e., itself and 1.
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488 818 is an even number, because it is evenly divisible by 2: 488 818 / 2 = 244 409.
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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 488 818 is about 699.155.
Thus, the square root of 488 818 is not an integer, and therefore 488 818 is not a square number.
The square of a number (here 488 818) is the result of the product of this number (488 818) by itself (i.e., 488 818 × 488 818); the square of 488 818 is sometimes called "raising 488 818 to the power 2", or "488 818 squared".
The square of 488 818 is 238 943 037 124 because 488 818 × 488 818 = 488 8182 = 238 943 037 124.
As a consequence, 488 818 is the square root of 238 943 037 124.
The multiples of 488 818 are all integers evenly divisible by 488 818, that is all numbers such that the remainder of the division by 488 818 is zero. There are infinitely many multiples of 488 818. The smallest multiples of 488 818 are: