It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 166 982 is not a prime number.
For example, 397 166 982 can be divided by 2: 397 166 982 / 2 = 198 583 491.
For 397 166 982 to be a prime number, it would have been required that 397 166 982 has only two divisors, i.e., itself and 1.
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397 166 982 is an even number, because it is evenly divisible by 2: 397 166 982 / 2 = 198 583 491.
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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 397 166 982 is about 19 929.049.
Thus, the square root of 397 166 982 is not an integer, and therefore 397 166 982 is not a square number.
The square of a number (here 397 166 982) is the result of the product of this number (397 166 982) by itself (i.e., 397 166 982 × 397 166 982); the square of 397 166 982 is sometimes called "raising 397 166 982 to the power 2", or "397 166 982 squared".
The square of 397 166 982 is 157 741 611 590 988 320 because 397 166 982 × 397 166 982 = 397 166 9822 = 157 741 611 590 988 320.
As a consequence, 397 166 982 is the square root of 157 741 611 590 988 320.
397 166 982 is a number with 9 digits.
The multiples of 397 166 982 are all integers evenly divisible by 397 166 982, that is all numbers such that the remainder of the division by 397 166 982 is zero. There are infinitely many multiples of 397 166 982. The smallest multiples of 397 166 982 are: