It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 165 913 is not a prime number.
For example, 397 165 913 can be divided by 167: 397 165 913 / 167 = 2 378 239.
For 397 165 913 to be a prime number, it would have been required that 397 165 913 has only two divisors, i.e., itself and 1.
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397 165 913 is an odd number, because it is not evenly divisible by 2.
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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 397 165 913 is about 19 929.022.
Thus, the square root of 397 165 913 is not an integer, and therefore 397 165 913 is not a square number.
The square of a number (here 397 165 913) is the result of the product of this number (397 165 913) by itself (i.e., 397 165 913 × 397 165 913); the square of 397 165 913 is sometimes called "raising 397 165 913 to the power 2", or "397 165 913 squared".
The square of 397 165 913 is 157 740 762 449 123 584 because 397 165 913 × 397 165 913 = 397 165 9132 = 157 740 762 449 123 584.
As a consequence, 397 165 913 is the square root of 157 740 762 449 123 584.
397 165 913 is a number with 9 digits.
The multiples of 397 165 913 are all integers evenly divisible by 397 165 913, that is all numbers such that the remainder of the division by 397 165 913 is zero. There are infinitely many multiples of 397 165 913. The smallest multiples of 397 165 913 are: