It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 264 015 478 is not a prime number.
For example, 264 015 478 can be divided by 2: 264 015 478 / 2 = 132 007 739.
For 264 015 478 to be a prime number, it would have been required that 264 015 478 has only two divisors, i.e., itself and 1.
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264 015 478 is an even number, because it is evenly divisible by 2: 264 015 478 / 2 = 132 007 739.
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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 264 015 478 is about 16 248.553.
Thus, the square root of 264 015 478 is not an integer, and therefore 264 015 478 is not a square number.
The square of a number (here 264 015 478) is the result of the product of this number (264 015 478) by itself (i.e., 264 015 478 × 264 015 478); the square of 264 015 478 is sometimes called "raising 264 015 478 to the power 2", or "264 015 478 squared".
The square of 264 015 478 is 69 704 172 623 568 480 because 264 015 478 × 264 015 478 = 264 015 4782 = 69 704 172 623 568 480.
As a consequence, 264 015 478 is the square root of 69 704 172 623 568 480.
264 015 478 is a number with 9 digits.
The multiples of 264 015 478 are all integers evenly divisible by 264 015 478, that is all numbers such that the remainder of the division by 264 015 478 is zero. There are infinitely many multiples of 264 015 478. The smallest multiples of 264 015 478 are: