It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 049 988 is not a prime number.
For example, 490 049 988 can be divided by 2: 490 049 988 / 2 = 245 024 994.
For 490 049 988 to be a prime number, it would have been required that 490 049 988 has only two divisors, i.e., itself and 1.
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490 049 988 is an even number, because it is evenly divisible by 2: 490 049 988 / 2 = 245 024 994.
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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 490 049 988 is about 22 137.073.
Thus, the square root of 490 049 988 is not an integer, and therefore 490 049 988 is not a square number.
The square of a number (here 490 049 988) is the result of the product of this number (490 049 988) by itself (i.e., 490 049 988 × 490 049 988); the square of 490 049 988 is sometimes called "raising 490 049 988 to the power 2", or "490 049 988 squared".
The square of 490 049 988 is 240 148 990 738 800 128 because 490 049 988 × 490 049 988 = 490 049 9882 = 240 148 990 738 800 128.
As a consequence, 490 049 988 is the square root of 240 148 990 738 800 128.
490 049 988 is a number with 9 digits.
The multiples of 490 049 988 are all integers evenly divisible by 490 049 988, that is all numbers such that the remainder of the division by 490 049 988 is zero. There are infinitely many multiples of 490 049 988. The smallest multiples of 490 049 988 are: