It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 167 842 is not a prime number.
For example, 167 842 can be divided by 2: 167 842 / 2 = 83 921.
For 167 842 to be a prime number, it would have been required that 167 842 has only two divisors, i.e., itself and 1.
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167 842 is an even number, because it is evenly divisible by 2: 167 842 / 2 = 83 921.
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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 167 842 is about 409.685.
Thus, the square root of 167 842 is not an integer, and therefore 167 842 is not a square number.
The square of a number (here 167 842) is the result of the product of this number (167 842) by itself (i.e., 167 842 × 167 842); the square of 167 842 is sometimes called "raising 167 842 to the power 2", or "167 842 squared".
The square of 167 842 is 28 170 936 964 because 167 842 × 167 842 = 167 8422 = 28 170 936 964.
As a consequence, 167 842 is the square root of 28 170 936 964.
The multiples of 167 842 are all integers evenly divisible by 167 842, that is all numbers such that the remainder of the division by 167 842 is zero. There are infinitely many multiples of 167 842. The smallest multiples of 167 842 are: