It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 971 398 is not a prime number.
For example, 971 398 can be divided by 2: 971 398 / 2 = 485 699.
For 971 398 to be a prime number, it would have been required that 971 398 has only two divisors, i.e., itself and 1.
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971 398 is an even number, because it is evenly divisible by 2: 971 398 / 2 = 485 699.
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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 971 398 is about 985.595.
Thus, the square root of 971 398 is not an integer, and therefore 971 398 is not a square number.
The square of a number (here 971 398) is the result of the product of this number (971 398) by itself (i.e., 971 398 × 971 398); the square of 971 398 is sometimes called "raising 971 398 to the power 2", or "971 398 squared".
The square of 971 398 is 943 614 074 404 because 971 398 × 971 398 = 971 3982 = 943 614 074 404.
As a consequence, 971 398 is the square root of 943 614 074 404.
The multiples of 971 398 are all integers evenly divisible by 971 398, that is all numbers such that the remainder of the division by 971 398 is zero. There are infinitely many multiples of 971 398. The smallest multiples of 971 398 are: