It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 413 is not a prime number.
For example, 988 413 can be divided by 3: 988 413 / 3 = 329 471.
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For 988 413 to be a prime number, it would have been required that 988 413 has only two divisors, i.e., itself and 1.
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988 413 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 988 413 is about 994.190.
Thus, the square root of 988 413 is not an integer, and therefore 988 413 is not a square number.
The square of a number (here 988 413) is the result of the product of this number (988 413) by itself (i.e., 988 413 × 988 413); the square of 988 413 is sometimes called "raising 988 413 to the power 2", or "988 413 squared".
The square of 988 413 is 976 960 258 569 because 988 413 × 988 413 = 988 4132 = 976 960 258 569.
As a consequence, 988 413 is the square root of 976 960 258 569.
The multiples of 988 413 are all integers evenly divisible by 988 413, that is all numbers such that the remainder of the division by 988 413 is zero. There are infinitely many multiples of 988 413. The smallest multiples of 988 413 are: