It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 485 498 is not a prime number.
For example, 485 498 can be divided by 2: 485 498 / 2 = 242 749.
For 485 498 to be a prime number, it would have been required that 485 498 has only two divisors, i.e., itself and 1.
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485 498 is an even number, because it is evenly divisible by 2: 485 498 / 2 = 242 749.
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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 485 498 is about 696.777.
Thus, the square root of 485 498 is not an integer, and therefore 485 498 is not a square number.
The square of a number (here 485 498) is the result of the product of this number (485 498) by itself (i.e., 485 498 × 485 498); the square of 485 498 is sometimes called "raising 485 498 to the power 2", or "485 498 squared".
The square of 485 498 is 235 708 308 004 because 485 498 × 485 498 = 485 4982 = 235 708 308 004.
As a consequence, 485 498 is the square root of 235 708 308 004.
The multiples of 485 498 are all integers evenly divisible by 485 498, that is all numbers such that the remainder of the division by 485 498 is zero. There are infinitely many multiples of 485 498. The smallest multiples of 485 498 are: