It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 118 263 is not a prime number.
For example, 118 263 can be divided by 3: 118 263 / 3 = 39 421.
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For 118 263 to be a prime number, it would have been required that 118 263 has only two divisors, i.e., itself and 1.
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118 263 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 118 263 is about 343.894.
Thus, the square root of 118 263 is not an integer, and therefore 118 263 is not a square number.
The square of a number (here 118 263) is the result of the product of this number (118 263) by itself (i.e., 118 263 × 118 263); the square of 118 263 is sometimes called "raising 118 263 to the power 2", or "118 263 squared".
The square of 118 263 is 13 986 137 169 because 118 263 × 118 263 = 118 2632 = 13 986 137 169.
As a consequence, 118 263 is the square root of 13 986 137 169.
The multiples of 118 263 are all integers evenly divisible by 118 263, that is all numbers such that the remainder of the division by 118 263 is zero. There are infinitely many multiples of 118 263. The smallest multiples of 118 263 are: