It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 7 130 723 is not a prime number.
For example, 7 130 723 can be divided by 29: 7 130 723 / 29 = 245 887.
For 7 130 723 to be a prime number, it would have been required that 7 130 723 has only two divisors, i.e., itself and 1.
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7 130 723 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 7 130 723 is about 2 670.341.
Thus, the square root of 7 130 723 is not an integer, and therefore 7 130 723 is not a square number.
The square of a number (here 7 130 723) is the result of the product of this number (7 130 723) by itself (i.e., 7 130 723 × 7 130 723); the square of 7 130 723 is sometimes called "raising 7 130 723 to the power 2", or "7 130 723 squared".
The square of 7 130 723 is 50 847 210 502 729 because 7 130 723 × 7 130 723 = 7 130 7232 = 50 847 210 502 729.
As a consequence, 7 130 723 is the square root of 50 847 210 502 729.
The multiples of 7 130 723 are all integers evenly divisible by 7 130 723, that is all numbers such that the remainder of the division by 7 130 723 is zero. There are infinitely many multiples of 7 130 723. The smallest multiples of 7 130 723 are: