It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 493 774 321 is not a prime number.
For example, 493 774 321 can be divided by 61: 493 774 321 / 61 = 8 094 661.
For 493 774 321 to be a prime number, it would have been required that 493 774 321 has only two divisors, i.e., itself and 1.
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493 774 321 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 493 774 321 is about 22 221.033.
Thus, the square root of 493 774 321 is not an integer, and therefore 493 774 321 is not a square number.
The square of a number (here 493 774 321) is the result of the product of this number (493 774 321) by itself (i.e., 493 774 321 × 493 774 321); the square of 493 774 321 is sometimes called "raising 493 774 321 to the power 2", or "493 774 321 squared".
The square of 493 774 321 is 243 813 080 079 011 040 because 493 774 321 × 493 774 321 = 493 774 3212 = 243 813 080 079 011 040.
As a consequence, 493 774 321 is the square root of 243 813 080 079 011 040.
493 774 321 is a number with 9 digits.
The multiples of 493 774 321 are all integers evenly divisible by 493 774 321, that is all numbers such that the remainder of the division by 493 774 321 is zero. There are infinitely many multiples of 493 774 321. The smallest multiples of 493 774 321 are: