It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 146 is not a prime number.
For example, 120 146 can be divided by 2: 120 146 / 2 = 60 073.
For 120 146 to be a prime number, it would have been required that 120 146 has only two divisors, i.e., itself and 1.
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120 146 is an even number, because it is evenly divisible by 2: 120 146 / 2 = 60 073.
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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 120 146 is about 346.621.
Thus, the square root of 120 146 is not an integer, and therefore 120 146 is not a square number.
The square of a number (here 120 146) is the result of the product of this number (120 146) by itself (i.e., 120 146 × 120 146); the square of 120 146 is sometimes called "raising 120 146 to the power 2", or "120 146 squared".
The square of 120 146 is 14 435 061 316 because 120 146 × 120 146 = 120 1462 = 14 435 061 316.
As a consequence, 120 146 is the square root of 14 435 061 316.
The multiples of 120 146 are all integers evenly divisible by 120 146, that is all numbers such that the remainder of the division by 120 146 is zero. There are infinitely many multiples of 120 146. The smallest multiples of 120 146 are: