It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 264 908 991 is not a prime number.
For example, 264 908 991 can be divided by 3: 264 908 991 / 3 = 88 302 997.
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For 264 908 991 to be a prime number, it would have been required that 264 908 991 has only two divisors, i.e., itself and 1.
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264 908 991 is an odd number, because it is not evenly divisible by 2.
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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 264 908 991 is about 16 276.025.
Thus, the square root of 264 908 991 is not an integer, and therefore 264 908 991 is not a square number.
The square of a number (here 264 908 991) is the result of the product of this number (264 908 991) by itself (i.e., 264 908 991 × 264 908 991); the square of 264 908 991 is sometimes called "raising 264 908 991 to the power 2", or "264 908 991 squared".
The square of 264 908 991 is 70 176 773 512 638 080 because 264 908 991 × 264 908 991 = 264 908 9912 = 70 176 773 512 638 080.
As a consequence, 264 908 991 is the square root of 70 176 773 512 638 080.
264 908 991 is a number with 9 digits.
The multiples of 264 908 991 are all integers evenly divisible by 264 908 991, that is all numbers such that the remainder of the division by 264 908 991 is zero. There are infinitely many multiples of 264 908 991. The smallest multiples of 264 908 991 are: