It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 738 478 is not a prime number.
For example, 738 478 can be divided by 2: 738 478 / 2 = 369 239.
For 738 478 to be a prime number, it would have been required that 738 478 has only two divisors, i.e., itself and 1.
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738 478 is an even number, because it is evenly divisible by 2: 738 478 / 2 = 369 239.
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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 738 478 is about 859.347.
Thus, the square root of 738 478 is not an integer, and therefore 738 478 is not a square number.
The square of a number (here 738 478) is the result of the product of this number (738 478) by itself (i.e., 738 478 × 738 478); the square of 738 478 is sometimes called "raising 738 478 to the power 2", or "738 478 squared".
The square of 738 478 is 545 349 756 484 because 738 478 × 738 478 = 738 4782 = 545 349 756 484.
As a consequence, 738 478 is the square root of 545 349 756 484.
The multiples of 738 478 are all integers evenly divisible by 738 478, that is all numbers such that the remainder of the division by 738 478 is zero. There are infinitely many multiples of 738 478. The smallest multiples of 738 478 are: