It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 178 is not a prime number.
For example, 490 178 can be divided by 2: 490 178 / 2 = 245 089.
For 490 178 to be a prime number, it would have been required that 490 178 has only two divisors, i.e., itself and 1.
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490 178 is an even number, because it is evenly divisible by 2: 490 178 / 2 = 245 089.
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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 490 178 is about 700.127.
Thus, the square root of 490 178 is not an integer, and therefore 490 178 is not a square number.
The square of a number (here 490 178) is the result of the product of this number (490 178) by itself (i.e., 490 178 × 490 178); the square of 490 178 is sometimes called "raising 490 178 to the power 2", or "490 178 squared".
The square of 490 178 is 240 274 471 684 because 490 178 × 490 178 = 490 1782 = 240 274 471 684.
As a consequence, 490 178 is the square root of 240 274 471 684.
The multiples of 490 178 are all integers evenly divisible by 490 178, that is all numbers such that the remainder of the division by 490 178 is zero. There are infinitely many multiples of 490 178. The smallest multiples of 490 178 are: