It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 279 is not a prime number.
For example, 120 279 can be divided by 3: 120 279 / 3 = 40 093.
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For 120 279 to be a prime number, it would have been required that 120 279 has only two divisors, i.e., itself and 1.
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120 279 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 120 279 is about 346.813.
Thus, the square root of 120 279 is not an integer, and therefore 120 279 is not a square number.
The square of a number (here 120 279) is the result of the product of this number (120 279) by itself (i.e., 120 279 × 120 279); the square of 120 279 is sometimes called "raising 120 279 to the power 2", or "120 279 squared".
The square of 120 279 is 14 467 037 841 because 120 279 × 120 279 = 120 2792 = 14 467 037 841.
As a consequence, 120 279 is the square root of 14 467 037 841.
The multiples of 120 279 are all integers evenly divisible by 120 279, that is all numbers such that the remainder of the division by 120 279 is zero. There are infinitely many multiples of 120 279. The smallest multiples of 120 279 are: