It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 239 402 is not a prime number.
For example, 490 239 402 can be divided by 2: 490 239 402 / 2 = 245 119 701.
For 490 239 402 to be a prime number, it would have been required that 490 239 402 has only two divisors, i.e., itself and 1.
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490 239 402 is an even number, because it is evenly divisible by 2: 490 239 402 / 2 = 245 119 701.
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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 490 239 402 is about 22 141.351.
Thus, the square root of 490 239 402 is not an integer, and therefore 490 239 402 is not a square number.
The square of a number (here 490 239 402) is the result of the product of this number (490 239 402) by itself (i.e., 490 239 402 × 490 239 402); the square of 490 239 402 is sometimes called "raising 490 239 402 to the power 2", or "490 239 402 squared".
The square of 490 239 402 is 240 334 671 273 317 600 because 490 239 402 × 490 239 402 = 490 239 4022 = 240 334 671 273 317 600.
As a consequence, 490 239 402 is the square root of 240 334 671 273 317 600.
490 239 402 is a number with 9 digits.
The multiples of 490 239 402 are all integers evenly divisible by 490 239 402, that is all numbers such that the remainder of the division by 490 239 402 is zero. There are infinitely many multiples of 490 239 402. The smallest multiples of 490 239 402 are: