It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 270 491 338 is not a prime number.
For example, 270 491 338 can be divided by 2: 270 491 338 / 2 = 135 245 669.
For 270 491 338 to be a prime number, it would have been required that 270 491 338 has only two divisors, i.e., itself and 1.
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270 491 338 is an even number, because it is evenly divisible by 2: 270 491 338 / 2 = 135 245 669.
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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 270 491 338 is about 16 446.621.
Thus, the square root of 270 491 338 is not an integer, and therefore 270 491 338 is not a square number.
The square of a number (here 270 491 338) is the result of the product of this number (270 491 338) by itself (i.e., 270 491 338 × 270 491 338); the square of 270 491 338 is sometimes called "raising 270 491 338 to the power 2", or "270 491 338 squared".
The square of 270 491 338 is 73 165 563 933 030 240 because 270 491 338 × 270 491 338 = 270 491 3382 = 73 165 563 933 030 240.
As a consequence, 270 491 338 is the square root of 73 165 563 933 030 240.
270 491 338 is a number with 9 digits.
The multiples of 270 491 338 are all integers evenly divisible by 270 491 338, that is all numbers such that the remainder of the division by 270 491 338 is zero. There are infinitely many multiples of 270 491 338. The smallest multiples of 270 491 338 are: