It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 264 403 604 is not a prime number.
For example, 264 403 604 can be divided by 2: 264 403 604 / 2 = 132 201 802.
For 264 403 604 to be a prime number, it would have been required that 264 403 604 has only two divisors, i.e., itself and 1.
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264 403 604 is an even number, because it is evenly divisible by 2: 264 403 604 / 2 = 132 201 802.
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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 264 403 604 is about 16 260.492.
Thus, the square root of 264 403 604 is not an integer, and therefore 264 403 604 is not a square number.
The square of a number (here 264 403 604) is the result of the product of this number (264 403 604) by itself (i.e., 264 403 604 × 264 403 604); the square of 264 403 604 is sometimes called "raising 264 403 604 to the power 2", or "264 403 604 squared".
The square of 264 403 604 is 69 909 265 808 188 816 because 264 403 604 × 264 403 604 = 264 403 6042 = 69 909 265 808 188 816.
As a consequence, 264 403 604 is the square root of 69 909 265 808 188 816.
264 403 604 is a number with 9 digits.
The multiples of 264 403 604 are all integers evenly divisible by 264 403 604, that is all numbers such that the remainder of the division by 264 403 604 is zero. There are infinitely many multiples of 264 403 604. The smallest multiples of 264 403 604 are: