It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 264 342 is not a prime number.
For example, 264 342 can be divided by 2: 264 342 / 2 = 132 171.
For 264 342 to be a prime number, it would have been required that 264 342 has only two divisors, i.e., itself and 1.
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264 342 is an even number, because it is evenly divisible by 2: 264 342 / 2 = 132 171.
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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 264 342 is about 514.142.
Thus, the square root of 264 342 is not an integer, and therefore 264 342 is not a square number.
The square of a number (here 264 342) is the result of the product of this number (264 342) by itself (i.e., 264 342 × 264 342); the square of 264 342 is sometimes called "raising 264 342 to the power 2", or "264 342 squared".
The square of 264 342 is 69 876 692 964 because 264 342 × 264 342 = 264 3422 = 69 876 692 964.
As a consequence, 264 342 is the square root of 69 876 692 964.
The multiples of 264 342 are all integers evenly divisible by 264 342, that is all numbers such that the remainder of the division by 264 342 is zero. There are infinitely many multiples of 264 342. The smallest multiples of 264 342 are: