Q: Is 387,143 a Prime Number?
A: No, 387,143 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 387143 can be evenly divided by 1 467 829 and 387,143, with no remainder.
Since 387,143 cannot be divided by just 1 and 387,143, it is not a prime number.