It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 998 972 is not a prime number.
For example, 998 972 can be divided by 2: 998 972 / 2 = 499 486.
For 998 972 to be a prime number, it would have been required that 998 972 has only two divisors, i.e., itself and 1.
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998 972 is an even number, because it is evenly divisible by 2: 998 972 / 2 = 499 486.
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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 998 972 is about 999.486.
Thus, the square root of 998 972 is not an integer, and therefore 998 972 is not a square number.
The square of a number (here 998 972) is the result of the product of this number (998 972) by itself (i.e., 998 972 × 998 972); the square of 998 972 is sometimes called "raising 998 972 to the power 2", or "998 972 squared".
The square of 998 972 is 997 945 056 784 because 998 972 × 998 972 = 998 9722 = 997 945 056 784.
As a consequence, 998 972 is the square root of 997 945 056 784.
The multiples of 998 972 are all integers evenly divisible by 998 972, that is all numbers such that the remainder of the division by 998 972 is zero. There are infinitely many multiples of 998 972. The smallest multiples of 998 972 are: