It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 159 231 is not a prime number.
For example, 159 231 can be divided by 3: 159 231 / 3 = 53 077.
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For 159 231 to be a prime number, it would have been required that 159 231 has only two divisors, i.e., itself and 1.
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159 231 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 159 231 is about 399.038.
Thus, the square root of 159 231 is not an integer, and therefore 159 231 is not a square number.
The square of a number (here 159 231) is the result of the product of this number (159 231) by itself (i.e., 159 231 × 159 231); the square of 159 231 is sometimes called "raising 159 231 to the power 2", or "159 231 squared".
The square of 159 231 is 25 354 511 361 because 159 231 × 159 231 = 159 2312 = 25 354 511 361.
As a consequence, 159 231 is the square root of 25 354 511 361.
The multiples of 159 231 are all integers evenly divisible by 159 231, that is all numbers such that the remainder of the division by 159 231 is zero. There are infinitely many multiples of 159 231. The smallest multiples of 159 231 are: