It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 938 is not a prime number.
For example, 120 938 can be divided by 2: 120 938 / 2 = 60 469.
For 120 938 to be a prime number, it would have been required that 120 938 has only two divisors, i.e., itself and 1.
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120 938 is an even number, because it is evenly divisible by 2: 120 938 / 2 = 60 469.
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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 120 938 is about 347.761.
Thus, the square root of 120 938 is not an integer, and therefore 120 938 is not a square number.
The square of a number (here 120 938) is the result of the product of this number (120 938) by itself (i.e., 120 938 × 120 938); the square of 120 938 is sometimes called "raising 120 938 to the power 2", or "120 938 squared".
The square of 120 938 is 14 625 999 844 because 120 938 × 120 938 = 120 9382 = 14 625 999 844.
As a consequence, 120 938 is the square root of 14 625 999 844.
The multiples of 120 938 are all integers evenly divisible by 120 938, that is all numbers such that the remainder of the division by 120 938 is zero. There are infinitely many multiples of 120 938. The smallest multiples of 120 938 are: