It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 263 997 464 is not a prime number.
For example, 263 997 464 can be divided by 2: 263 997 464 / 2 = 131 998 732.
For 263 997 464 to be a prime number, it would have been required that 263 997 464 has only two divisors, i.e., itself and 1.
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263 997 464 is an even number, because it is evenly divisible by 2: 263 997 464 / 2 = 131 998 732.
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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 263 997 464 is about 16 247.999.
Thus, the square root of 263 997 464 is not an integer, and therefore 263 997 464 is not a square number.
The square of a number (here 263 997 464) is the result of the product of this number (263 997 464) by itself (i.e., 263 997 464 × 263 997 464); the square of 263 997 464 is sometimes called "raising 263 997 464 to the power 2", or "263 997 464 squared".
The square of 263 997 464 is 69 694 660 998 431 296 because 263 997 464 × 263 997 464 = 263 997 4642 = 69 694 660 998 431 296.
As a consequence, 263 997 464 is the square root of 69 694 660 998 431 296.
263 997 464 is a number with 9 digits.
The multiples of 263 997 464 are all integers evenly divisible by 263 997 464, that is all numbers such that the remainder of the division by 263 997 464 is zero. There are infinitely many multiples of 263 997 464. The smallest multiples of 263 997 464 are: