It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 879 is not a prime number.
For example, 988 879 can be divided by 41: 988 879 / 41 = 24 119.
For 988 879 to be a prime number, it would have been required that 988 879 has only two divisors, i.e., itself and 1.
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988 879 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 988 879 is about 994.424.
Thus, the square root of 988 879 is not an integer, and therefore 988 879 is not a square number.
The square of a number (here 988 879) is the result of the product of this number (988 879) by itself (i.e., 988 879 × 988 879); the square of 988 879 is sometimes called "raising 988 879 to the power 2", or "988 879 squared".
The square of 988 879 is 977 881 676 641 because 988 879 × 988 879 = 988 8792 = 977 881 676 641.
As a consequence, 988 879 is the square root of 977 881 676 641.
The multiples of 988 879 are all integers evenly divisible by 988 879, that is all numbers such that the remainder of the division by 988 879 is zero. There are infinitely many multiples of 988 879. The smallest multiples of 988 879 are: