It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 987 488 is not a prime number.
For example, 987 488 can be divided by 2: 987 488 / 2 = 493 744.
For 987 488 to be a prime number, it would have been required that 987 488 has only two divisors, i.e., itself and 1.
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987 488 is an even number, because it is evenly divisible by 2: 987 488 / 2 = 493 744.
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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 987 488 is about 993.724.
Thus, the square root of 987 488 is not an integer, and therefore 987 488 is not a square number.
The square of a number (here 987 488) is the result of the product of this number (987 488) by itself (i.e., 987 488 × 987 488); the square of 987 488 is sometimes called "raising 987 488 to the power 2", or "987 488 squared".
The square of 987 488 is 975 132 550 144 because 987 488 × 987 488 = 987 4882 = 975 132 550 144.
As a consequence, 987 488 is the square root of 975 132 550 144.
The multiples of 987 488 are all integers evenly divisible by 987 488, that is all numbers such that the remainder of the division by 987 488 is zero. There are infinitely many multiples of 987 488. The smallest multiples of 987 488 are: