It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 512 674 is not a prime number.
For example, 512 674 can be divided by 2: 512 674 / 2 = 256 337.
For 512 674 to be a prime number, it would have been required that 512 674 has only two divisors, i.e., itself and 1.
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512 674 is an even number, because it is evenly divisible by 2: 512 674 / 2 = 256 337.
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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 512 674 is about 716.013.
Thus, the square root of 512 674 is not an integer, and therefore 512 674 is not a square number.
The square of a number (here 512 674) is the result of the product of this number (512 674) by itself (i.e., 512 674 × 512 674); the square of 512 674 is sometimes called "raising 512 674 to the power 2", or "512 674 squared".
The square of 512 674 is 262 834 630 276 because 512 674 × 512 674 = 512 6742 = 262 834 630 276.
As a consequence, 512 674 is the square root of 262 834 630 276.
The multiples of 512 674 are all integers evenly divisible by 512 674, that is all numbers such that the remainder of the division by 512 674 is zero. There are infinitely many multiples of 512 674. The smallest multiples of 512 674 are: