Q: Is 406,143 a Prime Number?
A: No, 406,143 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 406143 can be evenly divided by 1 3 9 45,127 135,381 and 406,143, with no remainder.
Since 406,143 cannot be divided by just 1 and 406,143, it is not a prime number.