It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 159 838 is not a prime number.
For example, 159 838 can be divided by 2: 159 838 / 2 = 79 919.
For 159 838 to be a prime number, it would have been required that 159 838 has only two divisors, i.e., itself and 1.
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159 838 is an even number, because it is evenly divisible by 2: 159 838 / 2 = 79 919.
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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 159 838 is about 399.797.
Thus, the square root of 159 838 is not an integer, and therefore 159 838 is not a square number.
The square of a number (here 159 838) is the result of the product of this number (159 838) by itself (i.e., 159 838 × 159 838); the square of 159 838 is sometimes called "raising 159 838 to the power 2", or "159 838 squared".
The square of 159 838 is 25 548 186 244 because 159 838 × 159 838 = 159 8382 = 25 548 186 244.
As a consequence, 159 838 is the square root of 25 548 186 244.
The multiples of 159 838 are all integers evenly divisible by 159 838, that is all numbers such that the remainder of the division by 159 838 is zero. There are infinitely many multiples of 159 838. The smallest multiples of 159 838 are: