It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 117 398 is not a prime number.
For example, 117 398 can be divided by 2: 117 398 / 2 = 58 699.
For 117 398 to be a prime number, it would have been required that 117 398 has only two divisors, i.e., itself and 1.
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117 398 is an even number, because it is evenly divisible by 2: 117 398 / 2 = 58 699.
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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 117 398 is about 342.634.
Thus, the square root of 117 398 is not an integer, and therefore 117 398 is not a square number.
The square of a number (here 117 398) is the result of the product of this number (117 398) by itself (i.e., 117 398 × 117 398); the square of 117 398 is sometimes called "raising 117 398 to the power 2", or "117 398 squared".
The square of 117 398 is 13 782 290 404 because 117 398 × 117 398 = 117 3982 = 13 782 290 404.
As a consequence, 117 398 is the square root of 13 782 290 404.
The multiples of 117 398 are all integers evenly divisible by 117 398, that is all numbers such that the remainder of the division by 117 398 is zero. There are infinitely many multiples of 117 398. The smallest multiples of 117 398 are: