It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 117 117 is not a prime number.
For example, 397 117 117 can be divided by 401: 397 117 117 / 401 = 990 317.
For 397 117 117 to be a prime number, it would have been required that 397 117 117 has only two divisors, i.e., itself and 1.
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397 117 117 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 397 117 117 is about 19 927.798.
Thus, the square root of 397 117 117 is not an integer, and therefore 397 117 117 is not a square number.
The square of a number (here 397 117 117) is the result of the product of this number (397 117 117) by itself (i.e., 397 117 117 × 397 117 117); the square of 397 117 117 is sometimes called "raising 397 117 117 to the power 2", or "397 117 117 squared".
The square of 397 117 117 is 157 702 004 614 391 680 because 397 117 117 × 397 117 117 = 397 117 1172 = 157 702 004 614 391 680.
As a consequence, 397 117 117 is the square root of 157 702 004 614 391 680.
397 117 117 is a number with 9 digits.
The multiples of 397 117 117 are all integers evenly divisible by 397 117 117, that is all numbers such that the remainder of the division by 397 117 117 is zero. There are infinitely many multiples of 397 117 117. The smallest multiples of 397 117 117 are: