It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 708 739 is not a prime number.
For example, 708 739 can be divided by 827: 708 739 / 827 = 857.
For 708 739 to be a prime number, it would have been required that 708 739 has only two divisors, i.e., itself and 1.
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708 739 is an odd number, because it is not evenly divisible by 2.
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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 708 739 is about 841.866.
Thus, the square root of 708 739 is not an integer, and therefore 708 739 is not a square number.
The square of a number (here 708 739) is the result of the product of this number (708 739) by itself (i.e., 708 739 × 708 739); the square of 708 739 is sometimes called "raising 708 739 to the power 2", or "708 739 squared".
The square of 708 739 is 502 310 970 121 because 708 739 × 708 739 = 708 7392 = 502 310 970 121.
As a consequence, 708 739 is the square root of 502 310 970 121.
The multiples of 708 739 are all integers evenly divisible by 708 739, that is all numbers such that the remainder of the division by 708 739 is zero. There are infinitely many multiples of 708 739. The smallest multiples of 708 739 are: