It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 627 642 is not a prime number.
For example, 120 627 642 can be divided by 2: 120 627 642 / 2 = 60 313 821.
For 120 627 642 to be a prime number, it would have been required that 120 627 642 has only two divisors, i.e., itself and 1.
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120 627 642 is an even number, because it is evenly divisible by 2: 120 627 642 / 2 = 60 313 821.
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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 120 627 642 is about 10 983.062.
Thus, the square root of 120 627 642 is not an integer, and therefore 120 627 642 is not a square number.
The square of a number (here 120 627 642) is the result of the product of this number (120 627 642) by itself (i.e., 120 627 642 × 120 627 642); the square of 120 627 642 is sometimes called "raising 120 627 642 to the power 2", or "120 627 642 squared".
The square of 120 627 642 is 14 551 028 014 480 164 because 120 627 642 × 120 627 642 = 120 627 6422 = 14 551 028 014 480 164.
As a consequence, 120 627 642 is the square root of 14 551 028 014 480 164.
120 627 642 is a number with 9 digits.
The multiples of 120 627 642 are all integers evenly divisible by 120 627 642, that is all numbers such that the remainder of the division by 120 627 642 is zero. There are infinitely many multiples of 120 627 642. The smallest multiples of 120 627 642 are: