It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 724 018 is not a prime number.
For example, 724 018 can be divided by 2: 724 018 / 2 = 362 009.
For 724 018 to be a prime number, it would have been required that 724 018 has only two divisors, i.e., itself and 1.
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724 018 is an even number, because it is evenly divisible by 2: 724 018 / 2 = 362 009.
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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 724 018 is about 850.892.
Thus, the square root of 724 018 is not an integer, and therefore 724 018 is not a square number.
The square of a number (here 724 018) is the result of the product of this number (724 018) by itself (i.e., 724 018 × 724 018); the square of 724 018 is sometimes called "raising 724 018 to the power 2", or "724 018 squared".
The square of 724 018 is 524 202 064 324 because 724 018 × 724 018 = 724 0182 = 524 202 064 324.
As a consequence, 724 018 is the square root of 524 202 064 324.
The multiples of 724 018 are all integers evenly divisible by 724 018, that is all numbers such that the remainder of the division by 724 018 is zero. There are infinitely many multiples of 724 018. The smallest multiples of 724 018 are: