It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 27 426 242 is not a prime number.
For example, 27 426 242 can be divided by 2: 27 426 242 / 2 = 13 713 121.
For 27 426 242 to be a prime number, it would have been required that 27 426 242 has only two divisors, i.e., itself and 1.
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27 426 242 is an even number, because it is evenly divisible by 2: 27 426 242 / 2 = 13 713 121.
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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 27 426 242 is about 5 237.007.
Thus, the square root of 27 426 242 is not an integer, and therefore 27 426 242 is not a square number.
The square of a number (here 27 426 242) is the result of the product of this number (27 426 242) by itself (i.e., 27 426 242 × 27 426 242); the square of 27 426 242 is sometimes called "raising 27 426 242 to the power 2", or "27 426 242 squared".
The square of 27 426 242 is 752 198 750 242 564 because 27 426 242 × 27 426 242 = 27 426 2422 = 752 198 750 242 564.
As a consequence, 27 426 242 is the square root of 752 198 750 242 564.
27 426 242 is a number with 8 digits.
The multiples of 27 426 242 are all integers evenly divisible by 27 426 242, that is all numbers such that the remainder of the division by 27 426 242 is zero. There are infinitely many multiples of 27 426 242. The smallest multiples of 27 426 242 are: