It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 112 138 is not a prime number.
For example, 112 138 can be divided by 2: 112 138 / 2 = 56 069.
For 112 138 to be a prime number, it would have been required that 112 138 has only two divisors, i.e., itself and 1.
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112 138 is an even number, because it is evenly divisible by 2: 112 138 / 2 = 56 069.
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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 112 138 is about 334.870.
Thus, the square root of 112 138 is not an integer, and therefore 112 138 is not a square number.
The square of a number (here 112 138) is the result of the product of this number (112 138) by itself (i.e., 112 138 × 112 138); the square of 112 138 is sometimes called "raising 112 138 to the power 2", or "112 138 squared".
The square of 112 138 is 12 574 931 044 because 112 138 × 112 138 = 112 1382 = 12 574 931 044.
As a consequence, 112 138 is the square root of 12 574 931 044.
The multiples of 112 138 are all integers evenly divisible by 112 138, that is all numbers such that the remainder of the division by 112 138 is zero. There are infinitely many multiples of 112 138. The smallest multiples of 112 138 are: