It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 513 609 474 is not a prime number.
For example, 513 609 474 can be divided by 2: 513 609 474 / 2 = 256 804 737.
For 513 609 474 to be a prime number, it would have been required that 513 609 474 has only two divisors, i.e., itself and 1.
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513 609 474 is an even number, because it is evenly divisible by 2: 513 609 474 / 2 = 256 804 737.
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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 513 609 474 is about 22 662.954.
Thus, the square root of 513 609 474 is not an integer, and therefore 513 609 474 is not a square number.
The square of a number (here 513 609 474) is the result of the product of this number (513 609 474) by itself (i.e., 513 609 474 × 513 609 474); the square of 513 609 474 is sometimes called "raising 513 609 474 to the power 2", or "513 609 474 squared".
The square of 513 609 474 is 263 794 691 782 556 672 because 513 609 474 × 513 609 474 = 513 609 4742 = 263 794 691 782 556 672.
As a consequence, 513 609 474 is the square root of 263 794 691 782 556 672.
513 609 474 is a number with 9 digits.
The multiples of 513 609 474 are all integers evenly divisible by 513 609 474, that is all numbers such that the remainder of the division by 513 609 474 is zero. There are infinitely many multiples of 513 609 474. The smallest multiples of 513 609 474 are: