It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 377 671 is not a prime number.
For example, 377 671 can be divided by 7: 377 671 / 7 = 53 953.
For 377 671 to be a prime number, it would have been required that 377 671 has only two divisors, i.e., itself and 1.
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377 671 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 377 671 is about 614.549.
Thus, the square root of 377 671 is not an integer, and therefore 377 671 is not a square number.
The square of a number (here 377 671) is the result of the product of this number (377 671) by itself (i.e., 377 671 × 377 671); the square of 377 671 is sometimes called "raising 377 671 to the power 2", or "377 671 squared".
The square of 377 671 is 142 635 384 241 because 377 671 × 377 671 = 377 6712 = 142 635 384 241.
As a consequence, 377 671 is the square root of 142 635 384 241.
The multiples of 377 671 are all integers evenly divisible by 377 671, that is all numbers such that the remainder of the division by 377 671 is zero. There are infinitely many multiples of 377 671. The smallest multiples of 377 671 are: