It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 902 is not a prime number.
For example, 120 902 can be divided by 2: 120 902 / 2 = 60 451.
For 120 902 to be a prime number, it would have been required that 120 902 has only two divisors, i.e., itself and 1.
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120 902 is an even number, because it is evenly divisible by 2: 120 902 / 2 = 60 451.
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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 120 902 is about 347.710.
Thus, the square root of 120 902 is not an integer, and therefore 120 902 is not a square number.
The square of a number (here 120 902) is the result of the product of this number (120 902) by itself (i.e., 120 902 × 120 902); the square of 120 902 is sometimes called "raising 120 902 to the power 2", or "120 902 squared".
The square of 120 902 is 14 617 293 604 because 120 902 × 120 902 = 120 9022 = 14 617 293 604.
As a consequence, 120 902 is the square root of 14 617 293 604.
The multiples of 120 902 are all integers evenly divisible by 120 902, that is all numbers such that the remainder of the division by 120 902 is zero. There are infinitely many multiples of 120 902. The smallest multiples of 120 902 are: