It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 169 is not a prime number.
For example, 397 169 can be divided by 389: 397 169 / 389 = 1 021.
For 397 169 to be a prime number, it would have been required that 397 169 has only two divisors, i.e., itself and 1.
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397 169 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 397 169 is about 630.213.
Thus, the square root of 397 169 is not an integer, and therefore 397 169 is not a square number.
The square of a number (here 397 169) is the result of the product of this number (397 169) by itself (i.e., 397 169 × 397 169); the square of 397 169 is sometimes called "raising 397 169 to the power 2", or "397 169 squared".
The square of 397 169 is 157 743 214 561 because 397 169 × 397 169 = 397 1692 = 157 743 214 561.
As a consequence, 397 169 is the square root of 157 743 214 561.
The multiples of 397 169 are all integers evenly divisible by 397 169, that is all numbers such that the remainder of the division by 397 169 is zero. There are infinitely many multiples of 397 169. The smallest multiples of 397 169 are: