It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 494 526 is not a prime number.
For example, 494 526 can be divided by 2: 494 526 / 2 = 247 263.
For 494 526 to be a prime number, it would have been required that 494 526 has only two divisors, i.e., itself and 1.
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494 526 is an even number, because it is evenly divisible by 2: 494 526 / 2 = 247 263.
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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 494 526 is about 703.225.
Thus, the square root of 494 526 is not an integer, and therefore 494 526 is not a square number.
The square of a number (here 494 526) is the result of the product of this number (494 526) by itself (i.e., 494 526 × 494 526); the square of 494 526 is sometimes called "raising 494 526 to the power 2", or "494 526 squared".
The square of 494 526 is 244 555 964 676 because 494 526 × 494 526 = 494 5262 = 244 555 964 676.
As a consequence, 494 526 is the square root of 244 555 964 676.
The multiples of 494 526 are all integers evenly divisible by 494 526, that is all numbers such that the remainder of the division by 494 526 is zero. There are infinitely many multiples of 494 526. The smallest multiples of 494 526 are: