It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 113 438 is not a prime number.
For example, 113 438 can be divided by 2: 113 438 / 2 = 56 719.
For 113 438 to be a prime number, it would have been required that 113 438 has only two divisors, i.e., itself and 1.
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113 438 is an even number, because it is evenly divisible by 2: 113 438 / 2 = 56 719.
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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 113 438 is about 336.806.
Thus, the square root of 113 438 is not an integer, and therefore 113 438 is not a square number.
The square of a number (here 113 438) is the result of the product of this number (113 438) by itself (i.e., 113 438 × 113 438); the square of 113 438 is sometimes called "raising 113 438 to the power 2", or "113 438 squared".
The square of 113 438 is 12 868 179 844 because 113 438 × 113 438 = 113 4382 = 12 868 179 844.
As a consequence, 113 438 is the square root of 12 868 179 844.
The multiples of 113 438 are all integers evenly divisible by 113 438, that is all numbers such that the remainder of the division by 113 438 is zero. There are infinitely many multiples of 113 438. The smallest multiples of 113 438 are: