Q: Is 387,105 a Prime Number?
A: No, 387,105 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 387105 can be evenly divided by 1 3 5 15 131 197 393 591 655 985 1,965 2,955 25,807 77,421 129,035 and 387,105, with no remainder.
Since 387,105 cannot be divided by just 1 and 387,105, it is not a prime number.