It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 500 242 is not a prime number.
For example, 500 242 can be divided by 2: 500 242 / 2 = 250 121.
For 500 242 to be a prime number, it would have been required that 500 242 has only two divisors, i.e., itself and 1.
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500 242 is an even number, because it is evenly divisible by 2: 500 242 / 2 = 250 121.
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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 500 242 is about 707.278.
Thus, the square root of 500 242 is not an integer, and therefore 500 242 is not a square number.
The square of a number (here 500 242) is the result of the product of this number (500 242) by itself (i.e., 500 242 × 500 242); the square of 500 242 is sometimes called "raising 500 242 to the power 2", or "500 242 squared".
The square of 500 242 is 250 242 058 564 because 500 242 × 500 242 = 500 2422 = 250 242 058 564.
As a consequence, 500 242 is the square root of 250 242 058 564.
The multiples of 500 242 are all integers evenly divisible by 500 242, that is all numbers such that the remainder of the division by 500 242 is zero. There are infinitely many multiples of 500 242. The smallest multiples of 500 242 are: