It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 989 997 is not a prime number.
For example, 989 997 can be divided by 3: 989 997 / 3 = 329 999.
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For 989 997 to be a prime number, it would have been required that 989 997 has only two divisors, i.e., itself and 1.
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989 997 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 989 997 is about 994.986.
Thus, the square root of 989 997 is not an integer, and therefore 989 997 is not a square number.
The square of a number (here 989 997) is the result of the product of this number (989 997) by itself (i.e., 989 997 × 989 997); the square of 989 997 is sometimes called "raising 989 997 to the power 2", or "989 997 squared".
The square of 989 997 is 980 094 060 009 because 989 997 × 989 997 = 989 9972 = 980 094 060 009.
As a consequence, 989 997 is the square root of 980 094 060 009.
The multiples of 989 997 are all integers evenly divisible by 989 997, that is all numbers such that the remainder of the division by 989 997 is zero. There are infinitely many multiples of 989 997. The smallest multiples of 989 997 are: