It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 764 988 is not a prime number.
For example, 764 988 can be divided by 2: 764 988 / 2 = 382 494.
For 764 988 to be a prime number, it would have been required that 764 988 has only two divisors, i.e., itself and 1.
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764 988 is an even number, because it is evenly divisible by 2: 764 988 / 2 = 382 494.
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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 764 988 is about 874.636.
Thus, the square root of 764 988 is not an integer, and therefore 764 988 is not a square number.
The square of a number (here 764 988) is the result of the product of this number (764 988) by itself (i.e., 764 988 × 764 988); the square of 764 988 is sometimes called "raising 764 988 to the power 2", or "764 988 squared".
The square of 764 988 is 585 206 640 144 because 764 988 × 764 988 = 764 9882 = 585 206 640 144.
As a consequence, 764 988 is the square root of 585 206 640 144.
The multiples of 764 988 are all integers evenly divisible by 764 988, that is all numbers such that the remainder of the division by 764 988 is zero. There are infinitely many multiples of 764 988. The smallest multiples of 764 988 are: