It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 242 674 321 is not a prime number.
For example, 242 674 321 can be divided by 83: 242 674 321 / 83 = 2 923 787.
For 242 674 321 to be a prime number, it would have been required that 242 674 321 has only two divisors, i.e., itself and 1.
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242 674 321 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 242 674 321 is about 15 578.008.
Thus, the square root of 242 674 321 is not an integer, and therefore 242 674 321 is not a square number.
The square of a number (here 242 674 321) is the result of the product of this number (242 674 321) by itself (i.e., 242 674 321 × 242 674 321); the square of 242 674 321 is sometimes called "raising 242 674 321 to the power 2", or "242 674 321 squared".
The square of 242 674 321 is 58 890 826 072 811 040 because 242 674 321 × 242 674 321 = 242 674 3212 = 58 890 826 072 811 040.
As a consequence, 242 674 321 is the square root of 58 890 826 072 811 040.
242 674 321 is a number with 9 digits.
The multiples of 242 674 321 are all integers evenly divisible by 242 674 321, that is all numbers such that the remainder of the division by 242 674 321 is zero. There are infinitely many multiples of 242 674 321. The smallest multiples of 242 674 321 are: