It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 377 397 is not a prime number.
For example, 377 397 can be divided by 3: 377 397 / 3 = 125 799.
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For 377 397 to be a prime number, it would have been required that 377 397 has only two divisors, i.e., itself and 1.
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377 397 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 377 397 is about 614.326.
Thus, the square root of 377 397 is not an integer, and therefore 377 397 is not a square number.
The square of a number (here 377 397) is the result of the product of this number (377 397) by itself (i.e., 377 397 × 377 397); the square of 377 397 is sometimes called "raising 377 397 to the power 2", or "377 397 squared".
The square of 377 397 is 142 428 495 609 because 377 397 × 377 397 = 377 3972 = 142 428 495 609.
As a consequence, 377 397 is the square root of 142 428 495 609.
The multiples of 377 397 are all integers evenly divisible by 377 397, that is all numbers such that the remainder of the division by 377 397 is zero. There are infinitely many multiples of 377 397. The smallest multiples of 377 397 are: