It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 788 674 is not a prime number.
For example, 788 674 can be divided by 2: 788 674 / 2 = 394 337.
For 788 674 to be a prime number, it would have been required that 788 674 has only two divisors, i.e., itself and 1.
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788 674 is an even number, because it is evenly divisible by 2: 788 674 / 2 = 394 337.
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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 788 674 is about 888.073.
Thus, the square root of 788 674 is not an integer, and therefore 788 674 is not a square number.
The square of a number (here 788 674) is the result of the product of this number (788 674) by itself (i.e., 788 674 × 788 674); the square of 788 674 is sometimes called "raising 788 674 to the power 2", or "788 674 squared".
The square of 788 674 is 622 006 678 276 because 788 674 × 788 674 = 788 6742 = 622 006 678 276.
As a consequence, 788 674 is the square root of 622 006 678 276.
The multiples of 788 674 are all integers evenly divisible by 788 674, that is all numbers such that the remainder of the division by 788 674 is zero. There are infinitely many multiples of 788 674. The smallest multiples of 788 674 are: