It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 734 998 321 is not a prime number.
For example, 734 998 321 can be divided by 709: 734 998 321 / 709 = 1 036 669.
For 734 998 321 to be a prime number, it would have been required that 734 998 321 has only two divisors, i.e., itself and 1.
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734 998 321 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 734 998 321 is about 27 110.852.
Thus, the square root of 734 998 321 is not an integer, and therefore 734 998 321 is not a square number.
The square of a number (here 734 998 321) is the result of the product of this number (734 998 321) by itself (i.e., 734 998 321 × 734 998 321); the square of 734 998 321 is sometimes called "raising 734 998 321 to the power 2", or "734 998 321 squared".
The square of 734 998 321 is 540 222 531 872 819 072 because 734 998 321 × 734 998 321 = 734 998 3212 = 540 222 531 872 819 072.
As a consequence, 734 998 321 is the square root of 540 222 531 872 819 072.
734 998 321 is a number with 9 digits.
The multiples of 734 998 321 are all integers evenly divisible by 734 998 321, that is all numbers such that the remainder of the division by 734 998 321 is zero. There are infinitely many multiples of 734 998 321. The smallest multiples of 734 998 321 are: