Q: Is 377,991 a Prime Number?
A: No, 377,991 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 377991 can be evenly divided by 1 3 9 41,999 125,997 and 377,991, with no remainder.
Since 377,991 cannot be divided by just 1 and 377,991, it is not a prime number.