It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 291 746 is not a prime number.
For example, 165 291 746 can be divided by 2: 165 291 746 / 2 = 82 645 873.
For 165 291 746 to be a prime number, it would have been required that 165 291 746 has only two divisors, i.e., itself and 1.
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165 291 746 is an even number, because it is evenly divisible by 2: 165 291 746 / 2 = 82 645 873.
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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 165 291 746 is about 12 856.584.
Thus, the square root of 165 291 746 is not an integer, and therefore 165 291 746 is not a square number.
The square of a number (here 165 291 746) is the result of the product of this number (165 291 746) by itself (i.e., 165 291 746 × 165 291 746); the square of 165 291 746 is sometimes called "raising 165 291 746 to the power 2", or "165 291 746 squared".
The square of 165 291 746 is 27 321 361 295 728 516 because 165 291 746 × 165 291 746 = 165 291 7462 = 27 321 361 295 728 516.
As a consequence, 165 291 746 is the square root of 27 321 361 295 728 516.
165 291 746 is a number with 9 digits.
The multiples of 165 291 746 are all integers evenly divisible by 165 291 746, that is all numbers such that the remainder of the division by 165 291 746 is zero. There are infinitely many multiples of 165 291 746. The smallest multiples of 165 291 746 are: