It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 264 638 054 is not a prime number.
For example, 264 638 054 can be divided by 2: 264 638 054 / 2 = 132 319 027.
For 264 638 054 to be a prime number, it would have been required that 264 638 054 has only two divisors, i.e., itself and 1.
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264 638 054 is an even number, because it is evenly divisible by 2: 264 638 054 / 2 = 132 319 027.
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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 264 638 054 is about 16 267.700.
Thus, the square root of 264 638 054 is not an integer, and therefore 264 638 054 is not a square number.
The square of a number (here 264 638 054) is the result of the product of this number (264 638 054) by itself (i.e., 264 638 054 × 264 638 054); the square of 264 638 054 is sometimes called "raising 264 638 054 to the power 2", or "264 638 054 squared".
The square of 264 638 054 is 70 033 299 624 906 912 because 264 638 054 × 264 638 054 = 264 638 0542 = 70 033 299 624 906 912.
As a consequence, 264 638 054 is the square root of 70 033 299 624 906 912.
264 638 054 is a number with 9 digits.
The multiples of 264 638 054 are all integers evenly divisible by 264 638 054, that is all numbers such that the remainder of the division by 264 638 054 is zero. There are infinitely many multiples of 264 638 054. The smallest multiples of 264 638 054 are: