It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 485 508 is not a prime number.
For example, 485 508 can be divided by 2: 485 508 / 2 = 242 754.
For 485 508 to be a prime number, it would have been required that 485 508 has only two divisors, i.e., itself and 1.
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485 508 is an even number, because it is evenly divisible by 2: 485 508 / 2 = 242 754.
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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 485 508 is about 696.784.
Thus, the square root of 485 508 is not an integer, and therefore 485 508 is not a square number.
The square of a number (here 485 508) is the result of the product of this number (485 508) by itself (i.e., 485 508 × 485 508); the square of 485 508 is sometimes called "raising 485 508 to the power 2", or "485 508 squared".
The square of 485 508 is 235 718 018 064 because 485 508 × 485 508 = 485 5082 = 235 718 018 064.
As a consequence, 485 508 is the square root of 235 718 018 064.
The multiples of 485 508 are all integers evenly divisible by 485 508, that is all numbers such that the remainder of the division by 485 508 is zero. There are infinitely many multiples of 485 508. The smallest multiples of 485 508 are: