It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 724 is not a prime number.
For example, 120 724 can be divided by 2: 120 724 / 2 = 60 362.
For 120 724 to be a prime number, it would have been required that 120 724 has only two divisors, i.e., itself and 1.
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120 724 is an even number, because it is evenly divisible by 2: 120 724 / 2 = 60 362.
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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 120 724 is about 347.454.
Thus, the square root of 120 724 is not an integer, and therefore 120 724 is not a square number.
The square of a number (here 120 724) is the result of the product of this number (120 724) by itself (i.e., 120 724 × 120 724); the square of 120 724 is sometimes called "raising 120 724 to the power 2", or "120 724 squared".
The square of 120 724 is 14 574 284 176 because 120 724 × 120 724 = 120 7242 = 14 574 284 176.
As a consequence, 120 724 is the square root of 14 574 284 176.
The multiples of 120 724 are all integers evenly divisible by 120 724, that is all numbers such that the remainder of the division by 120 724 is zero. There are infinitely many multiples of 120 724. The smallest multiples of 120 724 are: