It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 422 is not a prime number.
For example, 988 422 can be divided by 2: 988 422 / 2 = 494 211.
For 988 422 to be a prime number, it would have been required that 988 422 has only two divisors, i.e., itself and 1.
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988 422 is an even number, because it is evenly divisible by 2: 988 422 / 2 = 494 211.
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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 988 422 is about 994.194.
Thus, the square root of 988 422 is not an integer, and therefore 988 422 is not a square number.
The square of a number (here 988 422) is the result of the product of this number (988 422) by itself (i.e., 988 422 × 988 422); the square of 988 422 is sometimes called "raising 988 422 to the power 2", or "988 422 squared".
The square of 988 422 is 976 978 050 084 because 988 422 × 988 422 = 988 4222 = 976 978 050 084.
As a consequence, 988 422 is the square root of 976 978 050 084.
The multiples of 988 422 are all integers evenly divisible by 988 422, that is all numbers such that the remainder of the division by 988 422 is zero. There are infinitely many multiples of 988 422. The smallest multiples of 988 422 are: