It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 538 442 is not a prime number.
For example, 120 538 442 can be divided by 2: 120 538 442 / 2 = 60 269 221.
For 120 538 442 to be a prime number, it would have been required that 120 538 442 has only two divisors, i.e., itself and 1.
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120 538 442 is an even number, because it is evenly divisible by 2: 120 538 442 / 2 = 60 269 221.
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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 120 538 442 is about 10 979.000.
Thus, the square root of 120 538 442 is not an integer, and therefore 120 538 442 is not a square number.
The square of a number (here 120 538 442) is the result of the product of this number (120 538 442) by itself (i.e., 120 538 442 × 120 538 442); the square of 120 538 442 is sometimes called "raising 120 538 442 to the power 2", or "120 538 442 squared".
The square of 120 538 442 is 14 529 515 999 787 364 because 120 538 442 × 120 538 442 = 120 538 4422 = 14 529 515 999 787 364.
As a consequence, 120 538 442 is the square root of 14 529 515 999 787 364.
120 538 442 is a number with 9 digits.
The multiples of 120 538 442 are all integers evenly divisible by 120 538 442, that is all numbers such that the remainder of the division by 120 538 442 is zero. There are infinitely many multiples of 120 538 442. The smallest multiples of 120 538 442 are: