It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 738 318 is not a prime number.
For example, 738 318 can be divided by 2: 738 318 / 2 = 369 159.
For 738 318 to be a prime number, it would have been required that 738 318 has only two divisors, i.e., itself and 1.
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738 318 is an even number, because it is evenly divisible by 2: 738 318 / 2 = 369 159.
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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 738 318 is about 859.254.
Thus, the square root of 738 318 is not an integer, and therefore 738 318 is not a square number.
The square of a number (here 738 318) is the result of the product of this number (738 318) by itself (i.e., 738 318 × 738 318); the square of 738 318 is sometimes called "raising 738 318 to the power 2", or "738 318 squared".
The square of 738 318 is 545 113 469 124 because 738 318 × 738 318 = 738 3182 = 545 113 469 124.
As a consequence, 738 318 is the square root of 545 113 469 124.
The multiples of 738 318 are all integers evenly divisible by 738 318, that is all numbers such that the remainder of the division by 738 318 is zero. There are infinitely many multiples of 738 318. The smallest multiples of 738 318 are: