It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 797 242 is not a prime number.
For example, 797 242 can be divided by 2: 797 242 / 2 = 398 621.
For 797 242 to be a prime number, it would have been required that 797 242 has only two divisors, i.e., itself and 1.
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797 242 is an even number, because it is evenly divisible by 2: 797 242 / 2 = 398 621.
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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 797 242 is about 892.884.
Thus, the square root of 797 242 is not an integer, and therefore 797 242 is not a square number.
The square of a number (here 797 242) is the result of the product of this number (797 242) by itself (i.e., 797 242 × 797 242); the square of 797 242 is sometimes called "raising 797 242 to the power 2", or "797 242 squared".
The square of 797 242 is 635 594 806 564 because 797 242 × 797 242 = 797 2422 = 635 594 806 564.
As a consequence, 797 242 is the square root of 635 594 806 564.
The multiples of 797 242 are all integers evenly divisible by 797 242, that is all numbers such that the remainder of the division by 797 242 is zero. There are infinitely many multiples of 797 242. The smallest multiples of 797 242 are: