It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 708 738 is not a prime number.
For example, 708 738 can be divided by 2: 708 738 / 2 = 354 369.
For 708 738 to be a prime number, it would have been required that 708 738 has only two divisors, i.e., itself and 1.
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708 738 is an even number, because it is evenly divisible by 2: 708 738 / 2 = 354 369.
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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 708 738 is about 841.866.
Thus, the square root of 708 738 is not an integer, and therefore 708 738 is not a square number.
The square of a number (here 708 738) is the result of the product of this number (708 738) by itself (i.e., 708 738 × 708 738); the square of 708 738 is sometimes called "raising 708 738 to the power 2", or "708 738 squared".
The square of 708 738 is 502 309 552 644 because 708 738 × 708 738 = 708 7382 = 502 309 552 644.
As a consequence, 708 738 is the square root of 502 309 552 644.
The multiples of 708 738 are all integers evenly divisible by 708 738, that is all numbers such that the remainder of the division by 708 738 is zero. There are infinitely many multiples of 708 738. The smallest multiples of 708 738 are: