It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 127 is not a prime number.
For example, 120 127 can be divided by 7: 120 127 / 7 = 17 161.
For 120 127 to be a prime number, it would have been required that 120 127 has only two divisors, i.e., itself and 1.
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120 127 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 120 127 is about 346.593.
Thus, the square root of 120 127 is not an integer, and therefore 120 127 is not a square number.
The square of a number (here 120 127) is the result of the product of this number (120 127) by itself (i.e., 120 127 × 120 127); the square of 120 127 is sometimes called "raising 120 127 to the power 2", or "120 127 squared".
The square of 120 127 is 14 430 496 129 because 120 127 × 120 127 = 120 1272 = 14 430 496 129.
As a consequence, 120 127 is the square root of 14 430 496 129.
The multiples of 120 127 are all integers evenly divisible by 120 127, that is all numbers such that the remainder of the division by 120 127 is zero. There are infinitely many multiples of 120 127. The smallest multiples of 120 127 are: