It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 766 004 is not a prime number.
For example, 766 004 can be divided by 2: 766 004 / 2 = 383 002.
For 766 004 to be a prime number, it would have been required that 766 004 has only two divisors, i.e., itself and 1.
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766 004 is an even number, because it is evenly divisible by 2: 766 004 / 2 = 383 002.
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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 766 004 is about 875.217.
Thus, the square root of 766 004 is not an integer, and therefore 766 004 is not a square number.
The square of a number (here 766 004) is the result of the product of this number (766 004) by itself (i.e., 766 004 × 766 004); the square of 766 004 is sometimes called "raising 766 004 to the power 2", or "766 004 squared".
The square of 766 004 is 586 762 128 016 because 766 004 × 766 004 = 766 0042 = 586 762 128 016.
As a consequence, 766 004 is the square root of 586 762 128 016.
The multiples of 766 004 are all integers evenly divisible by 766 004, that is all numbers such that the remainder of the division by 766 004 is zero. There are infinitely many multiples of 766 004. The smallest multiples of 766 004 are: