Q: Is 381,508 a Prime Number?
A: No, 381,508 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 381508 can be evenly divided by 1 2 4 127 254 508 751 1,502 3,004 95,377 190,754 and 381,508, with no remainder.
Since 381,508 cannot be divided by just 1 and 381,508, it is not a prime number.