It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 800 792 is not a prime number.
For example, 800 792 can be divided by 2: 800 792 / 2 = 400 396.
For 800 792 to be a prime number, it would have been required that 800 792 has only two divisors, i.e., itself and 1.
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800 792 is an even number, because it is evenly divisible by 2: 800 792 / 2 = 400 396.
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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 800 792 is about 894.870.
Thus, the square root of 800 792 is not an integer, and therefore 800 792 is not a square number.
The square of a number (here 800 792) is the result of the product of this number (800 792) by itself (i.e., 800 792 × 800 792); the square of 800 792 is sometimes called "raising 800 792 to the power 2", or "800 792 squared".
The square of 800 792 is 641 267 827 264 because 800 792 × 800 792 = 800 7922 = 641 267 827 264.
As a consequence, 800 792 is the square root of 641 267 827 264.
The multiples of 800 792 are all integers evenly divisible by 800 792, that is all numbers such that the remainder of the division by 800 792 is zero. There are infinitely many multiples of 800 792. The smallest multiples of 800 792 are: