It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 564 804 is not a prime number.
For example, 490 564 804 can be divided by 2: 490 564 804 / 2 = 245 282 402.
For 490 564 804 to be a prime number, it would have been required that 490 564 804 has only two divisors, i.e., itself and 1.
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490 564 804 is an even number, because it is evenly divisible by 2: 490 564 804 / 2 = 245 282 402.
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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 490 564 804 is about 22 148.698.
Thus, the square root of 490 564 804 is not an integer, and therefore 490 564 804 is not a square number.
The square of a number (here 490 564 804) is the result of the product of this number (490 564 804) by itself (i.e., 490 564 804 × 490 564 804); the square of 490 564 804 is sometimes called "raising 490 564 804 to the power 2", or "490 564 804 squared".
The square of 490 564 804 is 240 653 826 923 558 400 because 490 564 804 × 490 564 804 = 490 564 8042 = 240 653 826 923 558 400.
As a consequence, 490 564 804 is the square root of 240 653 826 923 558 400.
490 564 804 is a number with 9 digits.
The multiples of 490 564 804 are all integers evenly divisible by 490 564 804, that is all numbers such that the remainder of the division by 490 564 804 is zero. There are infinitely many multiples of 490 564 804. The smallest multiples of 490 564 804 are: