It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 788 988 is not a prime number.
For example, 788 988 can be divided by 2: 788 988 / 2 = 394 494.
For 788 988 to be a prime number, it would have been required that 788 988 has only two divisors, i.e., itself and 1.
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788 988 is an even number, because it is evenly divisible by 2: 788 988 / 2 = 394 494.
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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 788 988 is about 888.250.
Thus, the square root of 788 988 is not an integer, and therefore 788 988 is not a square number.
The square of a number (here 788 988) is the result of the product of this number (788 988) by itself (i.e., 788 988 × 788 988); the square of 788 988 is sometimes called "raising 788 988 to the power 2", or "788 988 squared".
The square of 788 988 is 622 502 064 144 because 788 988 × 788 988 = 788 9882 = 622 502 064 144.
As a consequence, 788 988 is the square root of 622 502 064 144.
The multiples of 788 988 are all integers evenly divisible by 788 988, that is all numbers such that the remainder of the division by 788 988 is zero. There are infinitely many multiples of 788 988. The smallest multiples of 788 988 are: