It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 55 988 is not a prime number.
For example, 55 988 can be divided by 2: 55 988 / 2 = 27 994.
For 55 988 to be a prime number, it would have been required that 55 988 has only two divisors, i.e., itself and 1.
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55 988 is an even number, because it is evenly divisible by 2: 55 988 / 2 = 27 994.
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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 55 988 is about 236.618.
Thus, the square root of 55 988 is not an integer, and therefore 55 988 is not a square number.
The square of a number (here 55 988) is the result of the product of this number (55 988) by itself (i.e., 55 988 × 55 988); the square of 55 988 is sometimes called "raising 55 988 to the power 2", or "55 988 squared".
The square of 55 988 is 3 134 656 144 because 55 988 × 55 988 = 55 9882 = 3 134 656 144.
As a consequence, 55 988 is the square root of 3 134 656 144.
The multiples of 55 988 are all integers evenly divisible by 55 988, that is all numbers such that the remainder of the division by 55 988 is zero. There are infinitely many multiples of 55 988. The smallest multiples of 55 988 are: