It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 264 624 is not a prime number.
For example, 264 624 can be divided by 2: 264 624 / 2 = 132 312.
For 264 624 to be a prime number, it would have been required that 264 624 has only two divisors, i.e., itself and 1.
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264 624 is an even number, because it is evenly divisible by 2: 264 624 / 2 = 132 312.
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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 264 624 is about 514.416.
Thus, the square root of 264 624 is not an integer, and therefore 264 624 is not a square number.
The square of a number (here 264 624) is the result of the product of this number (264 624) by itself (i.e., 264 624 × 264 624); the square of 264 624 is sometimes called "raising 264 624 to the power 2", or "264 624 squared".
The square of 264 624 is 70 025 861 376 because 264 624 × 264 624 = 264 6242 = 70 025 861 376.
As a consequence, 264 624 is the square root of 70 025 861 376.
The multiples of 264 624 are all integers evenly divisible by 264 624, that is all numbers such that the remainder of the division by 264 624 is zero. There are infinitely many multiples of 264 624. The smallest multiples of 264 624 are: