It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 118 357 is not a prime number.
For example, 118 357 can be divided by 71: 118 357 / 71 = 1 667.
For 118 357 to be a prime number, it would have been required that 118 357 has only two divisors, i.e., itself and 1.
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118 357 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 118 357 is about 344.031.
Thus, the square root of 118 357 is not an integer, and therefore 118 357 is not a square number.
The square of a number (here 118 357) is the result of the product of this number (118 357) by itself (i.e., 118 357 × 118 357); the square of 118 357 is sometimes called "raising 118 357 to the power 2", or "118 357 squared".
The square of 118 357 is 14 008 379 449 because 118 357 × 118 357 = 118 3572 = 14 008 379 449.
As a consequence, 118 357 is the square root of 14 008 379 449.
The multiples of 118 357 are all integers evenly divisible by 118 357, that is all numbers such that the remainder of the division by 118 357 is zero. There are infinitely many multiples of 118 357. The smallest multiples of 118 357 are: