It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 167 728 is not a prime number.
For example, 167 728 can be divided by 2: 167 728 / 2 = 83 864.
For 167 728 to be a prime number, it would have been required that 167 728 has only two divisors, i.e., itself and 1.
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167 728 is an even number, because it is evenly divisible by 2: 167 728 / 2 = 83 864.
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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 167 728 is about 409.546.
Thus, the square root of 167 728 is not an integer, and therefore 167 728 is not a square number.
The square of a number (here 167 728) is the result of the product of this number (167 728) by itself (i.e., 167 728 × 167 728); the square of 167 728 is sometimes called "raising 167 728 to the power 2", or "167 728 squared".
The square of 167 728 is 28 132 681 984 because 167 728 × 167 728 = 167 7282 = 28 132 681 984.
As a consequence, 167 728 is the square root of 28 132 681 984.
The multiples of 167 728 are all integers evenly divisible by 167 728, that is all numbers such that the remainder of the division by 167 728 is zero. There are infinitely many multiples of 167 728. The smallest multiples of 167 728 are: