It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 616 124 is not a prime number.
For example, 165 616 124 can be divided by 2: 165 616 124 / 2 = 82 808 062.
For 165 616 124 to be a prime number, it would have been required that 165 616 124 has only two divisors, i.e., itself and 1.
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165 616 124 is an even number, because it is evenly divisible by 2: 165 616 124 / 2 = 82 808 062.
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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 165 616 124 is about 12 869.193.
Thus, the square root of 165 616 124 is not an integer, and therefore 165 616 124 is not a square number.
The square of a number (here 165 616 124) is the result of the product of this number (165 616 124) by itself (i.e., 165 616 124 × 165 616 124); the square of 165 616 124 is sometimes called "raising 165 616 124 to the power 2", or "165 616 124 squared".
The square of 165 616 124 is 27 428 700 528 783 376 because 165 616 124 × 165 616 124 = 165 616 1242 = 27 428 700 528 783 376.
As a consequence, 165 616 124 is the square root of 27 428 700 528 783 376.
165 616 124 is a number with 9 digits.
The multiples of 165 616 124 are all integers evenly divisible by 165 616 124, that is all numbers such that the remainder of the division by 165 616 124 is zero. There are infinitely many multiples of 165 616 124. The smallest multiples of 165 616 124 are: