It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 164 216 is not a prime number.
For example, 164 216 can be divided by 2: 164 216 / 2 = 82 108.
For 164 216 to be a prime number, it would have been required that 164 216 has only two divisors, i.e., itself and 1.
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164 216 is an even number, because it is evenly divisible by 2: 164 216 / 2 = 82 108.
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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 164 216 is about 405.236.
Thus, the square root of 164 216 is not an integer, and therefore 164 216 is not a square number.
The square of a number (here 164 216) is the result of the product of this number (164 216) by itself (i.e., 164 216 × 164 216); the square of 164 216 is sometimes called "raising 164 216 to the power 2", or "164 216 squared".
The square of 164 216 is 26 966 894 656 because 164 216 × 164 216 = 164 2162 = 26 966 894 656.
As a consequence, 164 216 is the square root of 26 966 894 656.
The multiples of 164 216 are all integers evenly divisible by 164 216, that is all numbers such that the remainder of the division by 164 216 is zero. There are infinitely many multiples of 164 216. The smallest multiples of 164 216 are: