It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 292 642 is not a prime number.
For example, 165 292 642 can be divided by 2: 165 292 642 / 2 = 82 646 321.
For 165 292 642 to be a prime number, it would have been required that 165 292 642 has only two divisors, i.e., itself and 1.
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165 292 642 is an even number, because it is evenly divisible by 2: 165 292 642 / 2 = 82 646 321.
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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 165 292 642 is about 12 856.619.
Thus, the square root of 165 292 642 is not an integer, and therefore 165 292 642 is not a square number.
The square of a number (here 165 292 642) is the result of the product of this number (165 292 642) by itself (i.e., 165 292 642 × 165 292 642); the square of 165 292 642 is sometimes called "raising 165 292 642 to the power 2", or "165 292 642 squared".
The square of 165 292 642 is 27 321 657 499 340 164 because 165 292 642 × 165 292 642 = 165 292 6422 = 27 321 657 499 340 164.
As a consequence, 165 292 642 is the square root of 27 321 657 499 340 164.
165 292 642 is a number with 9 digits.
The multiples of 165 292 642 are all integers evenly divisible by 165 292 642, that is all numbers such that the remainder of the division by 165 292 642 is zero. There are infinitely many multiples of 165 292 642. The smallest multiples of 165 292 642 are: