It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 167 166 is not a prime number.
For example, 167 166 can be divided by 2: 167 166 / 2 = 83 583.
For 167 166 to be a prime number, it would have been required that 167 166 has only two divisors, i.e., itself and 1.
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167 166 is an even number, because it is evenly divisible by 2: 167 166 / 2 = 83 583.
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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 167 166 is about 408.859.
Thus, the square root of 167 166 is not an integer, and therefore 167 166 is not a square number.
The square of a number (here 167 166) is the result of the product of this number (167 166) by itself (i.e., 167 166 × 167 166); the square of 167 166 is sometimes called "raising 167 166 to the power 2", or "167 166 squared".
The square of 167 166 is 27 944 471 556 because 167 166 × 167 166 = 167 1662 = 27 944 471 556.
As a consequence, 167 166 is the square root of 27 944 471 556.
The multiples of 167 166 are all integers evenly divisible by 167 166, that is all numbers such that the remainder of the division by 167 166 is zero. There are infinitely many multiples of 167 166. The smallest multiples of 167 166 are: