It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 180 518 is not a prime number.
For example, 180 518 can be divided by 2: 180 518 / 2 = 90 259.
For 180 518 to be a prime number, it would have been required that 180 518 has only two divisors, i.e., itself and 1.
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180 518 is an even number, because it is evenly divisible by 2: 180 518 / 2 = 90 259.
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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 180 518 is about 424.874.
Thus, the square root of 180 518 is not an integer, and therefore 180 518 is not a square number.
The square of a number (here 180 518) is the result of the product of this number (180 518) by itself (i.e., 180 518 × 180 518); the square of 180 518 is sometimes called "raising 180 518 to the power 2", or "180 518 squared".
The square of 180 518 is 32 586 748 324 because 180 518 × 180 518 = 180 5182 = 32 586 748 324.
As a consequence, 180 518 is the square root of 32 586 748 324.
The multiples of 180 518 are all integers evenly divisible by 180 518, that is all numbers such that the remainder of the division by 180 518 is zero. There are infinitely many multiples of 180 518. The smallest multiples of 180 518 are: