It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 412 is not a prime number.
For example, 490 412 can be divided by 2: 490 412 / 2 = 245 206.
For 490 412 to be a prime number, it would have been required that 490 412 has only two divisors, i.e., itself and 1.
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490 412 is an even number, because it is evenly divisible by 2: 490 412 / 2 = 245 206.
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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 490 412 is about 700.294.
Thus, the square root of 490 412 is not an integer, and therefore 490 412 is not a square number.
The square of a number (here 490 412) is the result of the product of this number (490 412) by itself (i.e., 490 412 × 490 412); the square of 490 412 is sometimes called "raising 490 412 to the power 2", or "490 412 squared".
The square of 490 412 is 240 503 929 744 because 490 412 × 490 412 = 490 4122 = 240 503 929 744.
As a consequence, 490 412 is the square root of 240 503 929 744.
The multiples of 490 412 are all integers evenly divisible by 490 412, that is all numbers such that the remainder of the division by 490 412 is zero. There are infinitely many multiples of 490 412. The smallest multiples of 490 412 are: