It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 488 646 is not a prime number.
For example, 488 646 can be divided by 2: 488 646 / 2 = 244 323.
For 488 646 to be a prime number, it would have been required that 488 646 has only two divisors, i.e., itself and 1.
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488 646 is an even number, because it is evenly divisible by 2: 488 646 / 2 = 244 323.
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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 488 646 is about 699.032.
Thus, the square root of 488 646 is not an integer, and therefore 488 646 is not a square number.
The square of a number (here 488 646) is the result of the product of this number (488 646) by itself (i.e., 488 646 × 488 646); the square of 488 646 is sometimes called "raising 488 646 to the power 2", or "488 646 squared".
The square of 488 646 is 238 774 913 316 because 488 646 × 488 646 = 488 6462 = 238 774 913 316.
As a consequence, 488 646 is the square root of 238 774 913 316.
The multiples of 488 646 are all integers evenly divisible by 488 646, that is all numbers such that the remainder of the division by 488 646 is zero. There are infinitely many multiples of 488 646. The smallest multiples of 488 646 are: