It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 949 624 is not a prime number.
For example, 397 949 624 can be divided by 2: 397 949 624 / 2 = 198 974 812.
For 397 949 624 to be a prime number, it would have been required that 397 949 624 has only two divisors, i.e., itself and 1.
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397 949 624 is an even number, because it is evenly divisible by 2: 397 949 624 / 2 = 198 974 812.
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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 397 949 624 is about 19 948.675.
Thus, the square root of 397 949 624 is not an integer, and therefore 397 949 624 is not a square number.
The square of a number (here 397 949 624) is the result of the product of this number (397 949 624) by itself (i.e., 397 949 624 × 397 949 624); the square of 397 949 624 is sometimes called "raising 397 949 624 to the power 2", or "397 949 624 squared".
The square of 397 949 624 is 158 363 903 241 741 376 because 397 949 624 × 397 949 624 = 397 949 6242 = 158 363 903 241 741 376.
As a consequence, 397 949 624 is the square root of 158 363 903 241 741 376.
397 949 624 is a number with 9 digits.
The multiples of 397 949 624 are all integers evenly divisible by 397 949 624, that is all numbers such that the remainder of the division by 397 949 624 is zero. There are infinitely many multiples of 397 949 624. The smallest multiples of 397 949 624 are: