It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 231 is not a prime number.
For example, 120 231 can be divided by 3: 120 231 / 3 = 40 077.
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For 120 231 to be a prime number, it would have been required that 120 231 has only two divisors, i.e., itself and 1.
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120 231 is an odd number, because it is not evenly divisible by 2.
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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 120 231 is about 346.743.
Thus, the square root of 120 231 is not an integer, and therefore 120 231 is not a square number.
The square of a number (here 120 231) is the result of the product of this number (120 231) by itself (i.e., 120 231 × 120 231); the square of 120 231 is sometimes called "raising 120 231 to the power 2", or "120 231 squared".
The square of 120 231 is 14 455 493 361 because 120 231 × 120 231 = 120 2312 = 14 455 493 361.
As a consequence, 120 231 is the square root of 14 455 493 361.
The multiples of 120 231 are all integers evenly divisible by 120 231, that is all numbers such that the remainder of the division by 120 231 is zero. There are infinitely many multiples of 120 231. The smallest multiples of 120 231 are: