It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 377 988 is not a prime number.
For example, 377 988 can be divided by 2: 377 988 / 2 = 188 994.
For 377 988 to be a prime number, it would have been required that 377 988 has only two divisors, i.e., itself and 1.
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377 988 is an even number, because it is evenly divisible by 2: 377 988 / 2 = 188 994.
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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 377 988 is about 614.807.
Thus, the square root of 377 988 is not an integer, and therefore 377 988 is not a square number.
The square of a number (here 377 988) is the result of the product of this number (377 988) by itself (i.e., 377 988 × 377 988); the square of 377 988 is sometimes called "raising 377 988 to the power 2", or "377 988 squared".
The square of 377 988 is 142 874 928 144 because 377 988 × 377 988 = 377 9882 = 142 874 928 144.
As a consequence, 377 988 is the square root of 142 874 928 144.
The multiples of 377 988 are all integers evenly divisible by 377 988, that is all numbers such that the remainder of the division by 377 988 is zero. There are infinitely many multiples of 377 988. The smallest multiples of 377 988 are: