It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 274 338 is not a prime number.
For example, 742 274 338 can be divided by 2: 742 274 338 / 2 = 371 137 169.
For 742 274 338 to be a prime number, it would have been required that 742 274 338 has only two divisors, i.e., itself and 1.
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742 274 338 is an even number, because it is evenly divisible by 2: 742 274 338 / 2 = 371 137 169.
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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 742 274 338 is about 27 244.712.
Thus, the square root of 742 274 338 is not an integer, and therefore 742 274 338 is not a square number.
The square of a number (here 742 274 338) is the result of the product of this number (742 274 338) by itself (i.e., 742 274 338 × 742 274 338); the square of 742 274 338 is sometimes called "raising 742 274 338 to the power 2", or "742 274 338 squared".
The square of 742 274 338 is 550 971 192 853 338 240 because 742 274 338 × 742 274 338 = 742 274 3382 = 550 971 192 853 338 240.
As a consequence, 742 274 338 is the square root of 550 971 192 853 338 240.
742 274 338 is a number with 9 digits.
The multiples of 742 274 338 are all integers evenly divisible by 742 274 338, that is all numbers such that the remainder of the division by 742 274 338 is zero. There are infinitely many multiples of 742 274 338. The smallest multiples of 742 274 338 are: