It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 377 997 is not a prime number.
For example, 377 997 can be divided by 3: 377 997 / 3 = 125 999.
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For 377 997 to be a prime number, it would have been required that 377 997 has only two divisors, i.e., itself and 1.
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377 997 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 377 997 is about 614.815.
Thus, the square root of 377 997 is not an integer, and therefore 377 997 is not a square number.
The square of a number (here 377 997) is the result of the product of this number (377 997) by itself (i.e., 377 997 × 377 997); the square of 377 997 is sometimes called "raising 377 997 to the power 2", or "377 997 squared".
The square of 377 997 is 142 881 732 009 because 377 997 × 377 997 = 377 9972 = 142 881 732 009.
As a consequence, 377 997 is the square root of 142 881 732 009.
The multiples of 377 997 are all integers evenly divisible by 377 997, that is all numbers such that the remainder of the division by 377 997 is zero. There are infinitely many multiples of 377 997. The smallest multiples of 377 997 are: