It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 708 478 is not a prime number.
For example, 708 478 can be divided by 2: 708 478 / 2 = 354 239.
For 708 478 to be a prime number, it would have been required that 708 478 has only two divisors, i.e., itself and 1.
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708 478 is an even number, because it is evenly divisible by 2: 708 478 / 2 = 354 239.
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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 708 478 is about 841.711.
Thus, the square root of 708 478 is not an integer, and therefore 708 478 is not a square number.
The square of a number (here 708 478) is the result of the product of this number (708 478) by itself (i.e., 708 478 × 708 478); the square of 708 478 is sometimes called "raising 708 478 to the power 2", or "708 478 squared".
The square of 708 478 is 501 941 076 484 because 708 478 × 708 478 = 708 4782 = 501 941 076 484.
As a consequence, 708 478 is the square root of 501 941 076 484.
The multiples of 708 478 are all integers evenly divisible by 708 478, that is all numbers such that the remainder of the division by 708 478 is zero. There are infinitely many multiples of 708 478. The smallest multiples of 708 478 are: